This product contains a Power Point and 24 Pages of Periodic Table Multiple Choice WITH ANSWERS. These are suitable to use for a grade 12 chemistry class and combined are 44 pages long. The topics included in the Periodic Table Power Point are: explaining the periodic table and periodic trends using the electron configuration of elements. The topics included in the periodic trends multiple choice are: trends in the periodic table, ionization energy, atomic radius, electron affinity and electronegativity. The topics included in the periodic table multiple choice are: groups and periods, periodic table structure, s-block elements, p-block elements, d-block elements and f-block elements, electron configurations of the different groups and periods on the periodic table, determining reactivity and metallic character of elements on the periodic table from their electron configurations and valence electrons. All multiple choice questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. If you want to save 20-25% on my products, buy them as a bundle! The links to some of my grade 12 chemistry bundles are included below. https://www.tes.com/teaching-resource/resource-12595568 (worksheets) https://www.tes.com/teaching-resource/resource-12586017 (tests) https://www.tes.com/teaching-resource/resource-12585996 (tests) https://www.tes.com/teaching-resource/resource-12586120 (multiple choice) https://www.tes.com/teaching-resource/resource-12586117 (multiple choice) https://www.tes.com/teaching-resource/resource-12586087 (short answer) https://www.tes.com/teaching-resource/resource-12587435 (organic unit power points) https://www.tes.com/teaching-resource/resource-12587434 (orbital and bonding unit power points) https://www.tes.com/teaching-resource/resource-12587433 (enthalpy and rates unit power points) https://www.tes.com/teaching-resource/resource-12587432 (equilibria unit power points) https://www.tes.com/teaching-resource/resource-12587431 (redox reactions unit power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the multiple choice and short answer questions I use for the orbital and bonding unit of grade 12 chemistry. All short answer questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. The short answer questions already have the marks assigned and have been separated into knowledge, application, thinking and communication questions. These multiple choice and short answer problems are suitable to use for grade 12 chemistry tests or quizzes. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! If you want to save 20-25% on my products, buy them as a bundle! The links to some of my grade 12 chemistry bundles are included below. https://www.tes.com/teaching-resource/resource-12595568 (worksheets) https://www.tes.com/teaching-resource/resource-12586017 (tests) https://www.tes.com/teaching-resource/resource-12585996 (tests) https://www.tes.com/teaching-resource/resource-12586120 (multiple choice) https://www.tes.com/teaching-resource/resource-12586117 (multiple choice) https://www.tes.com/teaching-resource/resource-12586087 (short answer) https://www.tes.com/teaching-resource/resource-12587435 (organic unit power points) https://www.tes.com/teaching-resource/resource-12587434 (orbital and bonding unit power points) https://www.tes.com/teaching-resource/resource-12587433 (enthalpy and rates unit power points) https://www.tes.com/teaching-resource/resource-12587432 (equilibria unit power points) https://www.tes.com/teaching-resource/resource-12587431 (redox reactions unit power points) I sell 5 types of products: power points, test packages, worksheet packages, multiple choice questions and short answer questions. I sell products for 4 different courses: Grade 12 Chemistry, Grade 11 Chemistry, Grade 11 Physics and Grade 10 Science. KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the multiple choice questions that I use for the orbital and bonding unit of grade 12 chemistry. These multiple choice questions are suitable to use for grade 12 chemistry tests or quizzes. All multiple choice questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. These multiple choice questions are suitable to use for grade 11 chemistry tests or quizzes. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! If you want to save 20-25% on my products, buy them as a bundle! The links to some of my grade 12 chemistry bundles are included below. https://www.tes.com/teaching-resource/resource-12595568 (worksheets) https://www.tes.com/teaching-resource/resource-12586017 (tests) https://www.tes.com/teaching-resource/resource-12585996 (tests) https://www.tes.com/teaching-resource/resource-12586120 (multiple choice) https://www.tes.com/teaching-resource/resource-12586117 (multiple choice) https://www.tes.com/teaching-resource/resource-12586087 (short answer) https://www.tes.com/teaching-resource/resource-12587435 (organic unit power points) https://www.tes.com/teaching-resource/resource-12587434 (orbital and bonding unit power points) https://www.tes.com/teaching-resource/resource-12587433 (enthalpy and rates unit power points) https://www.tes.com/teaching-resource/resource-12587432 (equilibria unit power points) https://www.tes.com/teaching-resource/resource-12587431 (redox reactions unit power points) I sell 5 types of products: power points, test packages, worksheet packages, multiple choice questions and short answer questions. I sell products for 4 different courses: Grade 12 Chemistry, Grade 11 Chemistry, Grade 11 Physics and Grade 10 Science. KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the short answer questions I use for the kinematics unit of grade 11 physics. These physics short answer questions are in Microsoft word format, so they are editable and printable. They are suitable to use for writing grade 11 physics tests or quizzes, making physics worksheets or for physics homework. About half the questions have answers provided while the other half do not have answers provided. My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. All the Power Points, quizzes, tests, multiple choice questions, short answer questions and worksheets that I post are properly formatted and ready to print. They have been checked for mistakes and typos! KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This product contains 1 Power Point on Complex Circuits and 32 pages of short answer problems on complex circuits. These are suitable to use for a grade 11 physics class and combined are 55 pages long. The topics included in the Power Point are solving complex circuits using Kirchhoff’s Laws and Ohm’s Law. It includes Kirchhoff’s 1st law, junction rule, Kirchhoff’s 2nd Law, loop law, conservation of charge, solving for voltage using ohm’s law and solving for current using ohm’s law. The topics included in the short answer questions are solving for various unknowns in complex circuits including solving for voltage, solving for equivalent resistance, solving for current, solving for resistance or solving for power. All short answer questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. The short answer questions already have the marks assigned and have been separated into knowledge, application, thinking and communication questions. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. My students have found these Power Points very helpful in understanding physics and chemistry, during online classes and in person learning. The students find the fully solved sample problems extremely helpful in strengthening their math and problem-solving skills. The numerous gifs and diagrams are extremely effective at helping teachers explain and clarify the concepts presented in the Power Points. If you want to save 20-25% on my products, buy them as a bundle! The links to some of my grade 11 physics bundles are included below. https://www.tes.com/teaching-resource/resource-12586015 (tests) https://www.tes.com/teaching-resource/resource-12595734 (worksheets) https://www.tes.com/teaching-resource/resource-12586203 (multiple choice) https://www.tes.com/teaching-resource/resource-12586180 (short answer) https://www.tes.com/teaching-resource/resource-12587430 (kinematics power points) https://www.tes.com/teaching-resource/resource-12587429 (dynamics power points) https://www.tes.com/teaching-resource/resource-12587428 (work and energy power points) https://www.tes.com/teaching-resource/resource-12587427 (waves power points) https://www.tes.com/teaching-resource/resource-12587424 (electricity & magnetism power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point��� view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the multiple choice and short answer questions I use for the forces or dynamics unit of grade 11 physics. The multiple choice questions have answers, but the short answer questions do not. These physics multiple choice and physics short answer questions are in Microsoft word format, so they are editable and printable. They can be used for writing grade 11 physics quizzes and tests, making physics worksheets or for physics homework. My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. All the Power Points, quizzes, tests, multiple choice questions, short answer questions and worksheets that I post are properly formatted and ready to print. They have been checked for mistakes and typos! KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the short answer questions I use for grade 11 physics (kinematics unit, dynamics unit, work and energy unit, waves and sound unit, electricity and magnetism unit). All short answer questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. The short answer questions already have the marks assigned and have been separated into knowledge, application, thinking and communication questions. These short answer problems are suitable to use for grade 11 physics tests or quizzes. Some of these questions have answers, but the majority of them do not have answers. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. I have over 140 Power Points for sale in my store, 40 worksheet packages, 100 test packages, 100 multiple choice packages and 70 short answer packages. I have Power Points, tests, quizzes, multiple choice questions, short answer questions and worksheets for every topic covered in grade 10 science, grade 11 chemistry, grade 11 physics and grade 12 chemistry! KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the short answer problems that I use for the dynamics or forces unit of grade 11 physics. The topics include solving for friction, solving for weight, solving for the normal force, solving for acceleration, solving for net force, drawing free body diagrams and solving for tension for objects on flat surfaces or inclines and tension pulley problems. These physics short answer questions are in Microsoft word format, so they are editable and printable. They are suitable to use for writing grade 11 physics tests or quizzes, making physics worksheets or for physics homework. About half the questions have answers provided while the other half do not have answers provided. All short answer questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. The short answer questions already have the marks assigned and have been separated into knowledge, application, thinking and communication questions. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. In my store I have multiple choice and short answer questions for every topic in Grade 11 Chemistry, Grade 11 Physics, Grade 10 Science and Grade 12 Chemistry.c chemistry. I have been teaching physics and chemistry for over 15 years. If you want to save 20-25% on my products, buy them as a bundle! The links to some of my grade 11 physics bundles are included below. https://www.tes.com/teaching-resource/resource-12586015 (tests) https://www.tes.com/teaching-resource/resource-12595734 (worksheets) https://www.tes.com/teaching-resource/resource-12586203 (multiple choice) https://www.tes.com/teaching-resource/resource-12586180 (short answer) https://www.tes.com/teaching-resource/resource-12587430 (kinematics power points) https://www.tes.com/teaching-resource/resource-12587429 (dynamics power points) https://www.tes.com/teaching-resource/resource-12587428 (work and energy power points) https://www.tes.com/teaching-resource/resource-12587427 (waves power points) https://www.tes.com/teaching-resource/resource-12587424 (electricity & magnetism power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This product contains a Pulley Power Point and 41 Pages of Pulley Short Answer Questions. These are suitable to use for a grade 11 physics class and combined are 70 pages long. The topics included in the pulley power point are solving pulley problems (WITH FULL SOLUTIONS), calculating tension, calculating net force, calculating acceleration of objects on inclines, calculating friction, calculating normal force and calculating the weight of an object. The topics in the Short Answer physics pulley problems are: solving for tension in a rope, solving for tension in strings, drawing free body diagrams for tension problems and pulleys. It also includes objects on inclines, flat surfaces and hanging objects, solving for friction, solving for weight, solving for the normal force, solving for acceleration, solving for net force and solving for tension. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. My students have found these Power Points very helpful in understanding physics and chemistry, during online classes and in person learning. The students find the fully solved sample problems extremely helpful in strengthening their math and problem-solving skills. The numerous gifs and diagrams are extremely effective at helping teachers explain and clarify the concepts presented in the Power Points. If you want to save 20-25% on my products, buy them as a bundle! The links to some of my grade 11 physics bundles are included below. https://www.tes.com/teaching-resource/resource-12586015 (tests) https://www.tes.com/teaching-resource/resource-12595734 (worksheets) https://www.tes.com/teaching-resource/resource-12586203 (multiple choice) https://www.tes.com/teaching-resource/resource-12586180 (short answer) https://www.tes.com/teaching-resource/resource-12587430 (kinematics power points) https://www.tes.com/teaching-resource/resource-12587429 (dynamics power points) https://www.tes.com/teaching-resource/resource-12587428 (work and energy power points) https://www.tes.com/teaching-resource/resource-12587427 (waves power points) https://www.tes.com/teaching-resource/resource-12587424 (electricity & magnetism power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the multiple choice questions that I use for the chemistry unit of Grade 10 Science. All multiple choice questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. These multiple choice questions are suitable to use for grade 10 science tests or quizzes. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! If you want to save 20-25% on my products, buy them as a bundle. The links to some of my grade 10 science bundles are included below! https://www.tes.com/teaching-resource/resource-12586012 (tests) https://www.tes.com/teaching-resource/resource-12586209 (multiple choice) https://www.tes.com/teaching-resource/resource-12586210 (short answer) https://www.tes.com/teaching-resource/resource-12595725 (worksheets) https://www.tes.com/teaching-resource/resource-12587441 (biology power points) https://www.tes.com/teaching-resource/resource-12587439 (chemistry power points) https://www.tes.com/teaching-resource/resource-12587437 (physics power points) https://www.tes.com/teaching-resource/resource-12587442 (climate change power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains 8 Chemistry Power Points and 125 pages of chemistry multiple choice questions. These products are suitable to use with a grade 10 science class and combined are 250 pages long. The order I teach the unit is included below. Chemical and Physical Properties Periodic Table Ionic and Covalent Bonding Naming Compounds Part 1 Naming Compounds Part 2 Balancing Chemical Equations Chemical Reactions Acids and Bases My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. All the Power Points, quizzes, tests, multiple choice questions, short answer questions and worksheets that I post are properly formatted and ready to print. They have been checked for mistakes and typos! In my store I have over 140 Power Points for sale in my store, 40 worksheet packages, 100 test packages, 100 multiple choice packages and 70 short answer packages. I have Power Points, tests, quizzes, multiple choice questions, short answer questions and worksheets for every topic covered in grade 10 science, grade 11 chemistry, grade 11 physics and grade 12 chemistry! If you want to save 20-25% on my products, buy them as a bundle. The links to some of my grade 10 science bundles are included below! https://www.tes.com/teaching-resource/resource-12586012 (tests) https://www.tes.com/teaching-resource/resource-12586209 (multiple choice) https://www.tes.com/teaching-resource/resource-12586210 (short answer) https://www.tes.com/teaching-resource/resource-12595725 (worksheets) https://www.tes.com/teaching-resource/resource-12587441 (biology power points) https://www.tes.com/teaching-resource/resource-12587439 (chemistry power points) https://www.tes.com/teaching-resource/resource-12587437 (physics power points) https://www.tes.com/teaching-resource/resource-12587442 (climate change power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains 10 climate change products, which combined are 145 pages in length. All these products CONTAIN ANSWERS and are suitable to use with a grade 8 to grade 10 science class. 4 Power Points on what is climate change, the effects of global warming and climate change, how can we reduce climate change, evidence of climate change, proxy records, the greenhouse effect, greenhouse gases, ocean and air currents, weather, climate and climate zones. 2 climate change tests and 2 climate change quizzes on climate change, global warming, weather vs. climate, greenhouse effect, greenhouse gases, albedo effect, air and ocean currents, heat sinks, carbon sinks, feedback loops, and proxy records. It also includes 26 Pages of Multiple Choice Questions and a climate change review worksheet WITH ANSWERS. My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. All the Power Points, quizzes, tests, multiple choice questions, short answer questions and worksheets that I post are properly formatted and ready to print. They have been checked for mistakes and typos! KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains 424 pages of grade 10 science short answer questions and multiple choice questions. There are 20 products in this bundle. If you want all the products in this bundle, in one product, at an even greater discount check out my grade 10 science question bank. The multiple choice in this bundle contain answers, but the short answer do not. All multiple choice questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. These multiple choice problems are suitable to use for grade 11 chemistry tests or quizzes. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. In my store I have over 140 Power Points for sale in my store, 40 worksheet packages, 100 test packages, 100 multiple choice packages and 70 short answer packages. I have Power Points, tests, quizzes, multiple choice questions, short answer questions and worksheets for every topic covered in grade 10 science, grade 11 chemistry, grade 11 physics and grade 12 chemistry! If you want to save 20-25% on my products, buy them as a bundle. The links to some of my grade 10 science bundles are included below! https://www.tes.com/teaching-resource/resource-12586012 (tests) https://www.tes.com/teaching-resource/resource-12586209 (multiple choice) https://www.tes.com/teaching-resource/resource-12586210 (short answer) https://www.tes.com/teaching-resource/resource-12595725 (worksheets) https://www.tes.com/teaching-resource/resource-12587441 (biology power points) https://www.tes.com/teaching-resource/resource-12587439 (chemistry power points) https://www.tes.com/teaching-resource/resource-12587437 (physics power points) https://www.tes.com/teaching-resource/resource-12587442 (climate change power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This product contains 26 Pages of Climate Change Multiple Choice Questions WITH ANSWERS and 10 pages of Short Answer Questions on Climate Change, Greenhouse Effect and Weather. These are suitable to use for a grade 10 science class and combined are 36 pages long. The topics included in the multiple choice questions are weather and climate, greenhouse effect, greenhouse gases, albedo effect, air and ocean currents, heat sinks, carbon sinks, feedback loops, global warming and proxy records. The topics included in the short answer are climate and weather, greenhouse gases, greenhouse effect, albedo effect, air and ocean currents, carbon sinks, heat sinks, feedback loops, global warming and proxy records. All multiple choice questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! All short answer questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. The short answer questions already have the marks assigned and have been separated into knowledge, application, thinking and communication questions. My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. If you want to save 20-25% on my products, buy them as a bundle. The links to some of my grade 10 science bundles are included below! https://www.tes.com/teaching-resource/resource-12586012 (tests) https://www.tes.com/teaching-resource/resource-12586209 (multiple choice) https://www.tes.com/teaching-resource/resource-12586210 (short answer) https://www.tes.com/teaching-resource/resource-12595725 (worksheets) https://www.tes.com/teaching-resource/resource-12587441 (biology power points) https://www.tes.com/teaching-resource/resource-12587439 (chemistry power points) https://www.tes.com/teaching-resource/resource-12587437 (physics power points) https://www.tes.com/teaching-resource/resource-12587442 (climate change power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the multiple choice questions WITH ANSWERS that I use for all the units of Grade 10 Science (biology unit, chemistry unit, physics unit and climate change unit). All multiple choice questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! If you want to save 20-25% on my products, buy them as a bundle. The links to some of my grade 10 science bundles are included below! https://www.tes.com/teaching-resource/resource-12586012 (tests) https://www.tes.com/teaching-resource/resource-12586209 (multiple choice) https://www.tes.com/teaching-resource/resource-12586210 (short answer) https://www.tes.com/teaching-resource/resource-12595725 (worksheets) https://www.tes.com/teaching-resource/resource-12587441 (biology power points) https://www.tes.com/teaching-resource/resource-12587439 (chemistry power points) https://www.tes.com/teaching-resource/resource-12587437 (physics power points) https://www.tes.com/teaching-resource/resource-12587442 (climate change power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This product contains 2 Power Points and 26 Pages of Multiple Choice WITH ANSWERS. These are suitable to use for a grade 10 science class and combined are 59 pages long. The topics included in the 1st Power Point are weather, climate and climate zones. The topics included in the 2nd Power Point are greenhouse effect, greenhouse gases, ocean and air currents. The topics included in the multiple choice questions are weather and climate, greenhouse effect, greenhouse gases, albedo effect, air and ocean currents, heat sinks, carbon sinks, feedback loops, global warming and proxy records. All multiple choice questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. If you want to save 20-25% on my products, buy them as a bundle. The links to some of my grade 10 science bundles are included below! https://www.tes.com/teaching-resource/resource-12586012 (tests) https://www.tes.com/teaching-resource/resource-12586209 (multiple choice) https://www.tes.com/teaching-resource/resource-12586210 (short answer) https://www.tes.com/teaching-resource/resource-12595725 (worksheets) https://www.tes.com/teaching-resource/resource-12587441 (biology power points) https://www.tes.com/teaching-resource/resource-12587439 (chemistry power points) https://www.tes.com/teaching-resource/resource-12587437 (physics power points) https://www.tes.com/teaching-resource/resource-12587442 (climate change power points) KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice

This bundle contains all the multiple choice questions that I use for the organic chemistry unit of grade 12 chemistry. These multiple choice questions are suitable to use for grade 12 chemistry tests or quizzes. All multiple choice questions are in 12 font, times new roman, without text boxes and condensed into the least amount of space possible. These multiple choice questions are suitable to use for grade 11 chemistry tests or quizzes. All the multiple choice questions, short answer questions, Power Points, worksheets, quizzes, labs and tests that I post are properly formatted and ready to print. They have been checked for mistakes and typos! If you want to save 20-25% on my products, buy them as a bundle! The links to some of my grade 12 chemistry bundles are included below. https://www.tes.com/teaching-resource/resource-12595568 (worksheets) https://www.tes.com/teaching-resource/resource-12586017 (tests) https://www.tes.com/teaching-resource/resource-12585996 (tests) https://www.tes.com/teaching-resource/resource-12586120 (multiple choice) https://www.tes.com/teaching-resource/resource-12586117 (multiple choice) https://www.tes.com/teaching-resource/resource-12586087 (short answer) https://www.tes.com/teaching-resource/resource-12587435 (organic unit power points) https://www.tes.com/teaching-resource/resource-12587434 (orbital and bonding unit power points) https://www.tes.com/teaching-resource/resource-12587433 (enthalpy and rates unit power points) https://www.tes.com/teaching-resource/resource-12587432 (equilibria unit power points) https://www.tes.com/teaching-resource/resource-12587431 (redox reactions unit power points) My name is Darrin Mathewson and I have a PhD in organic chemistry. I have been teaching physics and chemistry for over 15 years. In my store I have over 140 Power Points for sale in my store, 40 worksheet packages, 100 test packages, 100 multiple choice packages and 70 short answer packages. I have Power Points, tests, quizzes, multiple choice questions, short answer questions and worksheets for every topic covered in grade 10 science, grade 11 chemistry, grade 11 physics and grade 12 chemistry! KEY WORD SEARCHES TO USE TO NAVIGATE MY STORE: type “grade 11 physics power point” to view grade 11 physics power points type “grade 11 chemistry power point” view grade 11 chemistry power points type “grade 12 chemistry power point” view grade 12 chemistry power points type “grade 10 science power point” to view grade 10 science power points type “test package grade 11 physics” to view grade 11 physics tests type “test package grade 11 chemistry” to view grade 11 chemistry tests type “test package grade 12 chemistry” to view grade 12 chemistry tests type “test package grade 10 science” to view grade 10 science tests type “worksheets grade 11 physics” to view grade 11 physics worksheets type “worksheets grade 11 chemistry” to view grade 11 chemistry worksheets type “worksheets grade 12 chemistry” to view grade 12 chemistry worksheets type “worksheets grade 10 science” to view grade 10 science worksheets type “short answer grade 11 physics” to view grade 11 physics short answer type “short answer grade 11 chemistry” view grade 11 chemistry short answer type “short answer grade 12 chemistry” view grade 12 chemistry short answer type “short answer grade 10 science” to view grade 10 science short answer type “multiple choice grade 11 physics” view grade 11 physics multiple choice type “multiple choice grade 10 science” view grade 10 science multiple choice type “multiple choice grade 11 chemistry” to view grade 11 chemistry multiple choice type “multiple choice grade 12 chemistry” to view grade 12 chemistry multiple choice