A fun activity for children learning about physical and chemical changes.

Homework, practice problems and a multiple choice Exam practice to support the learning of a unit on Chemical Reactions. • 90 Questions in all • Questions are editable • ANSWERS are included for every problem. Learners will: • Write word equations • Write skeleton equations • Write balanced chemical equations • Classify chemical reactions • Use the activity series to predict single replacement reactions • Write balanced net ionic equations • Identify the precipitate in double replacement reactions This resource is meant for teachers in the US.

Homework sets, worksheet, and sample test questions to support the learning of Kinetic Molecular Theory for high school chemistry students. Includes 71 questions in all. All questions are EDITABLE and ANSWERS are included. This resource is meant to be used by teachers in the US.

Homework sets, a worksheet and sample test questions to support the learning of chemical quantities, the mole, conversions between mass, volume and mole, percent composition and empirical formula. • 72 questions in all • All questions are editable • All ANSWERS are included This resource is meant to be used by teachers in the US.

Homework sets, a practice quiz and sample test questions to support the learning of a unit on Atomic Structure. • Includes 102 questions in all! • All questions are EDITABLE and include ANSWERS. This resource is meant to be used by teachers in the US.

Homework sets with ANSWERS, a worksheet and plenty of sample test questions to support the learning of a unit on Ions, Ionic Bonding, Ionic Compounds and Metallic Bonding. • 87 editable questions in all • All ANSWERS are included This resource is meant to be used by teachers in the US.

Homework sets, a worksheet and sample test questions to support the learning of Gas Properties and the Gas Laws. 74 problems in all. Can be recycled year after year. All questions are EDITABLE and all ANSWERS are included. This resource is meant to be used by teachers in the US.

Homework sets and multiple choice exam practice problems to support the learning of a unit on Acids, Bases, and Salts. All questions (124 in all!) are editable and ANSWERS are provided for each!. Learners will answer questions about: • Acid-base definitions • Hydrogen ions and acidity • pH calculations • hydrogen ion and hdyroxide ion concentrations • acid and base strength • acid dissociation constant • neutralisation reactions • salts in solution • titration calculations This resource is meant to be used by teachers in the US.

Homework sets, worksheet and sample test questions to support the learning of a unit on STOICHIOMETRY (Chemical Calculations). • 78 Questions in all • All questions can be edited • ANSWERS are included for each problem. Learners will solve problems related to: • chemical calculations of the masses, moles and volume of substances in a chemical reaction • Identify the limiting and excess reactants • calculations of the theoretical yield and percent yield This resource is meant to be used by teachers in the US.

Homework sets and multiple choice exam practice problems to support the learning of a unit on The Periodic Table. All questions (120 in all!) are editable and ANSWERS are provided for each!. Learners will answer questions about: • Groups and periods in the periodic table • Metals, nonmetals and semi-metals in the periodic table • Transition metals in the periodic table • Properties of metals, nonmetals, semi-metals and transition metals • Electron configuration • Energy levels, sub-levels and orbitals • Periodic table trends - atomic size • Periodic table trends - ionic size • Periodic table trends - electronegativity • Periodic table trends - ionization energy This resource is meant to be used by teachers in the US.

Homework sets, practice problems and multiple choice exam practice problems to support the learning of naming and writing chemical formulae for ionic compounds, molecular compounds, acids and bases. • More than 88 questions are included • All questions are editable • All ANSWERS are included This resource is meant to be used by teachers in the US.

Homework sets, a practice quiz and sample test questions to support the learning of a unit on Thermochemistry. • Loads of sample multiple choice test questions • Short answer and essay questions • Homework sets • Lab Worksheet • Includes over 90 questions in all! • Great for SAT II Chemistry preparation • All questions are EDITABLE and include ANSWERS.

Homework sets and sample test questions to support the learning of The Chemistry of Water. • 85 Questions • All questions are editable • Answers are included Some of the topics in this unit include: • Water's unique properties • Hydrogen bonds • Homogeneous aqueous solutions • Polarity • Dissolving • Solubility • Electrolytes • Hygroscopic substances • Dissociation • Hydrates • Heterogeneous aqueous systems, colloids, suspensions and solutions • Brownian motion This resource is meant to be used by teachers in the US.

Homework sets and multiple choice exam practice problems to support the learning of a unit on Chemical Kinetics and Equilibrium. All questions (102 in all!) are editable and ANSWERS are provided for each!. Learners will answer questions about: • Reaction rates • Factors affecting reaction rates • Equilbrium • Factors affecting equilbrium position • Equilbrium constant expression • Solubility equilibrium • Entropy and free energy • Rate law • Orders of reaction • Reaction mechanism This resource is meant to be used by teachers in the US.

Homework sets with ANSWERS and multiple choice exam practice problems to support the learning of Covalent Bonding. • Includes 87 questions in all • All questions are editable • All answers are included Topics covered in these questions include: • molecular compounds • covalent bonding • molecular shapes (VSEPR theory) • hybrid orbitals • polarity • and intermolecular forces. This resource is meant to be used by teachers in the US.

Homework sets, a worksheet and sample test questions to support the learning of SOLUTIONS. • Includes a total of 102 questions • All questions are EDITABLE • ANSWERS are included for each question Topics include: • Properties of solutions • solubility • saturated, unsaturated and supersaturated solutions • molarity • molality • percent by mass • percent by volume • dilution calculations • colligative properties of solutions - freezing point, vapor pressure, boiling point • calculations involving colligative properties This resource is meant to be used by teachers and students in the US.

An interactive 50-slide presentation that introduces chemical reactions and writing skeleton equations, word equations and balanced chemical equations with state symbols. Many sample problems and practice problems for learners to participate. Scaffolded lesson notes for pupils and two worksheets to practice writing word equations and balancing equations are included in this resource pack. In these lessons, pupils will: • know the signs of a chemical change • review identifying the reactants and the products of a chemical reaction • use the symbols of the elements and write the formulae of simple compounds • determine the formula of an ionic compound from the charges on the ions present • construct word equations and simple balanced chemical equations • construct equations with state symbols • deduce the balanced equation for a chemical reaction, given relevant information Please leave a review if you find this useful. Thank you.

This resource includes a highly visual PowerPoint presentation (over 90 slides!) on the topic of ENERGY, forms of energy, energy transformations and energy diagrams. The presentation uses many visual aids and is thoughtfully animated to promote participation from learners of all abilities. Two worksheets and sample exam questions (71 questions with ANSWERS!)) are also included. Appropriate for year 7 or year 8 pupils. Students will learn: 1. that energy is the capacity or ability to do work (the ability to make matter change) 2. that generally, there are 2 types of energy: potential energy and kinetic energy 3. that there are many forms of potential and kinetic energy including: thermal energy (heat), electromagnetic energy (radiated), sound energy, gravitational potential energy (GPE), elastic potential, nuclear, chemical energy and electrical energy. 4. that gravitational energy depends on an object's mass and height above the earth's surface 5. that kinetic energy depends on an object's mass and how fast it is moving 6. that energy is transformed from one form to another 7. that a fuel is stored energy, which must be burnt to release the energy 8. Fuel + Oxygen = Energy + Carbon Dioxide + Water + Waste Product 9. that most of the Earth's energy ultimately comes from the Sun 10. that energy sources can be described as either renewable or Non-renewable 11. that Renewable means can be used again or replaced within a Iifetime 12. some advantages and disadvantages of energy sources 13. the need for energy saving with non-renewable energy sources and ultimately with all energy sources 14. to construct an energy transfer diagram 15. to construct a Sankey diagram 16. that energy is conserved in an energy transformation I hope you find this resource useful. Cheers.

This resource includes a highly visual 34-slide PowerPoint presentation, scaffolded notes for pupils, and a worksheet. In this resource, pupils will learn... 1) to compare and group together different kinds of rocks on the basis of their appearance and simple physical properties 2) to recognise that soils are made from rocks and organic matter 3) the rock cycle and the formation of igneous, sedimentary and metamorphic rocks 4) to understand how cooling and solidifying of magma results in formation of igneous rocks. 
 5) to understand that sedimentary rocks are made by processes which include the deposition of rock fragments or organic material, or as a result of evaporation. 
 6) to understand how rock fragments are transported by flowing water or wind, and how grain size affects transport and settling of sediment; understand how landscape can be eroded. 
 7) to understand that metamorphic rocks are formed by action of heat and pressure on existing rocks. 
 8) to understand the meaning of the term ‘mineral’. 
 9) to know how forces generated by expansion, contraction and the freezing of water can lead to the physical weathering of rocks. 
 10) to know the different layers of a soil profile I hope you find this resource helpful.

This resource is broken up into 2 parts. These 2 parts covers many of the important models of the atom. From Democritus and Dalton to Thomson and Rutherford. Part 1 includes 31 slides that covers the early models of the atom. This includes Democritus, Aristotle, and John Dalton and Dalton's atomic theory. An interactive quiz to review the topic is included at the end of the lesson. Part 2 is a highly visual 57-slide powerpoint. These activities engages learners to rediscover JJ Thomson's cathode ray tube experiment and visualise the "plum pudding" model of the atom. The second half details Rutherford's gold foil experiment and the discovery of the nucleus. A crossword puzzle and summary sheet to revise both Part 1 and Part 2 are also provided. I hope you find these lessons useful. Please rate and comment. Thank you.