This is a fun (and moderately challenging) crossword puzzle that would serve as an excellent starter, plenary or in-lesson activity for any class about DNA structure. This crossword tests students’ knowledge of: The location of DNA in the cell The nucleotide as the basic building block of DNA Complimentary base pairing This is a lot of fun and your kids will love it. If your students have never learnt anything about DNA before, then you could provide the students with a summary to help them as they do the puzzle. In this pack you get a PPTX (which you can edit), a pdf version and a png of the puzzle itself (in case you want to project it on your interactive whiteboard for students to fill in).

This PowerPoint Presentation covers most of the requirements for the Extraction and Uses of Metals unit for Edexcel IGCSE Chemistry in a clear and coherent manner. These slides may also be useful for other exam boards, such as AQA, WJEC, CIE, etc., if modified after download. Specification statements covered include: 5.1 explain how the methods of extraction of the metals in this section are related to their positions in the reactivity series 5.2 describe and explain the extraction of aluminium from purified aluminium oxide by electrolysis, including: i the use of molten cryolite as a solvent and to decrease the required operating temperature ii the need to replace the positive electrodes iii the cost of the electricity as a major factor 5.3 write ionic half-equations for the reactions at the electrodes in aluminium extraction 5.4 describe and explain the main reactions involved in the extraction of iron from iron ore (haematite), using coke, limestone and air in a blast furnace 5.5 explain the uses of aluminium and iron, in terms of their properties.

This PowerPoint Presentation covers most of the requirements for Group 1 Alkali Metals unit for Edexcel IGCSE Chemistry in a clear and coherent manner. These slides may also be useful for other exam boards, such as AQA, WJEC, CIE, etc., if modified after download. Specification statements covered include: Describe the reactions of these elements with water and understand that the reactions provide a basis for their recognition as a family of elements Describe the relative reactivities of the elements in Group Explain the relative reactivities of the elements in Group 1 in terms of distance between the outer electrons and the nucleus.

This PowerPoint Presentation covers most of the requirements for the Covalent Bonding unit for Edexcel IGCSE Chemistry in a clear and coherent manner. These slides may also be useful for other exam boards, such as AQA, WJEC, CIE, etc., if modified after download. Specification statements covered include: 1.31 describe the formation of a covalent bond by the sharing of a pair of electrons between two atoms. 1.32 understand covalent bonding as a strong attraction between the bonding pair of electrons and the nuclei of the atoms involved in the bond. 1.33 explain, using dot and cross diagrams, the formation of covalent compounds by electron sharing for the following substances: Hydrogen, chlorine, hydrogen chloride, water, methane, ammonia, oxygen, nitrogen, carbon dioxide, ethane, ethene. 1.34 recall that substances with simple molecular substances are gases or liquids, or solids with low melting points. 1.35 explain why substances with simple molecular structure have low melting points in terms of the relatively weak forces between the molecules. 1.36 explain the high melting points of substances with giant covalent structures in terms of the breaking of many strong covalent bonds.

This is a brilliant, two-page ionic bonding worksheet that is suitable for GCSE, IGCSE and MYP students. The worksheet comes with full solutions and has been hand-made and checked by me (I’m a high school chemistry teacher with 15 years of experience). In the worksheet, students have to fill in the blanks, add electrons to shells and draw a full diagram.

This is an awesome crossword puzzle that would serve as an excellent starter, plenary or in-lesson activity for any periodic table and electron shells class. This crossword tests students’ knowledge of: Order of filling of electrons Position of elements in the periodic table Electronic configurations of type 2,8,2 (s,p and d orbitals are not covered) This is a lot of fun and my students loved it. The kids will literally have to hunt through a periodic table to find answers to clues such as: This element has an electronic configuration of 2,7 This element has an electronic configuration of 2,8,5 The first three periods of the periodic table are tested. In this pack you get a PPTX (which you can edit), a pdf version and a png of the puzzle itself (in case you want to project it on your interactive whiteboard for students to fill in).

This PowerPoint Presentation covers most of the requirements for the Acids, Alkalis and Titrations unit for Edexcel IGCSE Chemistry in a clear and coherent manner. These slides may also be useful for other exam boards, such as AQA, WJEC, CIE, etc., if modified after download. Specification statements covered include: describe the use of the indicators litmus, phenolphthalein and methyl orange to distinguish between acidic and alkaline solutions understand how the pH scale, from 0–14, can be used to classify solutions as strongly acidic, weakly acidic, neutral, weakly alkaline or strongly alkaline describe the use of universal indicator to measure the approximate pH value of a solution define acids as sources of hydrogen ions, H+, and alkalis as sources of hydroxide ions, OH¯ predict the products of reactions between dilute hydrochloric, nitric and sulfuric acids; and metals, metal oxides and metal carbonates (excluding the reactions between nitric acid and metals) understand the general rules for predicting the solubility of salts in water: i all common sodium, potassium and ammonium salts are soluble ii all nitrates are soluble iii common chlorides are soluble, except silver chloride iv common sulfates are soluble, except those of barium and calcium v common carbonates are insoluble, except those of sodium, potassium and ammonium describe experiments to prepare soluble salts from acids describe experiments to prepare insoluble salts using precipitation reactions describe experiments to carry out acid-alkali titrations.

This fun and dynamic resource is perfect for IGCSE, GCSE and MYP Chemistry students. It covers all of the essential vocabulary of electrolysis including: Anode Cathode Anion Cation Electrode Electrolyte REDCAT (Reduction at the cathode) OILRIG (Oxidation is loss, reduction is gain) PANCake (Positive Anode, Negative Cathode) You can use this fun activity as a starter, plenary or 'breaker' within the lesson. In this pack you get a pptx, pdf and a png file of the puzzle itself.

This PowerPoint presentation goes through the basics of covalent bonding and is suitable for GCSE and IGCSE Level students. Covalent bonding is described as the sharing of electrons between non-metal atoms, and care is taken to deliver the material in a paced, step-by-step fashion. This PPT assumes some knowledge of ionic bonding, so if you haven’t covered that topic yet, then you might want to delete those slides after download. Dot-and-cross diagrams are included: both with inner shells and simplified (only outer shells) formats - perfect for training students to be efficient in the exam. Activities included (feel free to edit or modify after download): Comparing bonding diagrams as a starter (spotting similarities and differences) Main teaching content (beginning from first principles with simple atomic structure, leading into covalent bond formation) Think map to compare ionic and covalent bonding (feel free to remove if needed) Drawing dot-and-cross and stick diagrams as a plenary ***Learning outcomes are included, so this is a great ‘box ticker’ for an observation lesson. *** Some syllabus references that this PPT satisfies (to name but a few): AQA GCSE Chemistry: **4.2.1.1 Chemical Trends:**Covalent bonding occurs in most non-metallic elements and in compounds of non-metals. 4.2.1.4 Covalent Bonding: When atoms share pairs of electrons, they form covalent bonds. These bonds between atoms are strong 4.2.1.4 Covalent Bonding: The covalent bonds in molecules and giant structures can be represented in the following forms (dot and cross and ball and stick examples given in the specification) **Edexcel IGCSE Chemistry: ** 1.44: Know that a covalent bond is formed between atoms by the sharing of a pair of electrons 1.45: Understand covalent bonds in terms of electrostatic attractions 1.46: Understand how to use dot-and-cross diagrams to represent covalent bonds

This PowerPoint Presentation covers most of the requirements for the Crude Oil and Alkanes units for Edexcel IGCSE Chemistry in a clear and coherent manner. These slides may also be useful for other exam boards, such as AQA, WJEC, CIE, etc., if modified after download. Specification statements covered include: know that crude oil is a mixture of hydrocarbons describe how the industrial process of fractional distillation separates crude oil into fractions know the names and uses of the main fractions obtained from crude oil: refinery gases, gasoline, kerosene, diesel, fuel oil and bitumen know the trend in colour, boiling point and viscosity of the main fractions know that a fuel is a substance that, when burned, releases heat energy know the possible products of complete and incomplete combustion of hydrocarbons with oxygen in the air know the general formula for alkanes explain why alkanes are classified as saturated hydrocarbons understand how to draw the structural and displayed formulae for alkanes with up to five carbon atoms in the molecule, and to name the unbranched-chain isomers describe the reactions of alkanes with halogens in the presence of ultraviolet radiation, limited to mono-substitution

After teaching and tutoring thousands of chemistry students over the years, I've found that the topic of ions tends to cause tremendous confusion (and is generally poorly understood).This is one of those fundamental topics that must be understood properly if students are going to learn about balancing equations, stoichiometry and advanced level chemistry later in in school. I created this resource booklet as a very clear way for students to understand the following: • What the period and group numbers tell us about the structure of an atom • What anions and cations are • How to use the group number of an element to figure out what kind of ion it will form Complete with full colour images, activities and answers; this booklet finally offers a clear and comprehensive explanation of this fundamental topic in chemistry. At the end there is also a link to a website, where students can take this topic to the next level and learn about ionic bonding and the formulae of ionic compounds. I've set the price at 2 pounds because this resource took a lot of time to create, and is of a very high quality. All images have no attribution (they have been self-created or obtained from www.pixabay.com)

This is a fun (and moderately challenging) crossword puzzle that would serve as an excellent starter, plenary or in-lesson activity for any class about elements, compounds and isotopes. This crossword tests students’ knowledge of: 1. The differences between elements and compounds in terms of physical structure, ease of separation and reactivity 2. Groups and periods in the periodic table, and how they relate to valence electron and shell number 3. The atomic definition of isotopes This is a lot of fun and your kids will love it. If your students have never learnt anything about elements, compounds and isotopes before, then you could provide the students with a summary to help them as they do the puzzle. In this pack you get a PPTX (which you can edit), a pdf version and a png of the puzzle itself (in case you want to project it on your interactive whiteboard for students to fill in).

This well-formatted worksheet is perfect for high-ability GCSE students and post-16 learners. It covers: The definition of isotopes (in terms of neutrons, protons and electrons) The uses of radioisotopes (along with examples for each use) Symbols for radioisotopes This sheet should keep your students busy for some time as they will need to do some research to find out the answers for each question. It also comes as a Word document, so is fully editable and easy to re-format if needs be.

A brilliant, well-illustrated, clear and varied worksheet that works well as starter, plenary or as a chunk of the main body of lesson. Suitable for GCSE or IGCSE Chemistry, Science (Double Award) or Science (Single Award), this resource covers: 1. The differences between elements and compounds in terms of physical structure (represented by diagrams), ease of separation and reactivity 2. Groups and periods in the periodic table, and how they relate to valence electron and shell number Comes complete with answers. Great for peer or self-assessment. Included in this pack are both the word doc (which you can edit) and pdf versions.

This ten word crossword puzzle is designed to review the key vocabulary found in the ionic bonding topic, and is suitable for GCSE and IGCSE Level students. Clues and answers are as follows: anion: A negative ion cation: A positive ion lost: Positive ions are formed when electrons are ____ gained: Negative ions are formed when electrons are ______ oppositely: An ionic bond is defined as the electrostatic force of attraction that exists between two ________ charged ions metals: These usually form positive ions nonmetals: These usually form negative ions chloride: This is the name of the negative ion found in table salt lattice: Many ions join together to form a large _______ structure soluble: Ionic compounds are usually _______ in water

This PowerPoint presentation goes through the basics of ion formation and is suitable for GCSE and IGCSE Level students. Metals are clearly shown to lose electrons, whereas non-metals are clearly shown to gain electrons. Key words such as ‘anion’ and ‘cation’ are included, and electron shell/‘dot and cross’ diagrams with sqaure brackets are given (i.e. in the same format as required by the exam). Activities included (feel free to edit or modify after download): Whiteboard.fi starter Main teaching content (beginning from first principles with simple atomic structure, leading into ion formation) Google Doc suggested plenary (feel free to copy the slide into a Google Doc. or print for students to fill in) Some syllabus references that this PPT satisfies (to name but a few): AQA GCSE Chemistry: 4.2.1.1 Chemical Trends:* Ionic bonding occurs in compounds formed from metals combined with non-metals.* 4.2.1.2 Ionic Bonding: Students should be able to draw dot and cross diagrams for ionic compounds formed by metals in Groups 1 and 2 with non-metals in Groups 6 and 7. **Edexcel IGCSE Chemistry: ** 1.37: Understand how ions are formed by electron loss or gain 1.40: Draw dot-and-cross diagrams to show the formation of ionic compounds by electron transfer, limited to combinations of elements from Groups 1, 2, 3 and 5, 6, 7

This ten word crossword puzzle is designed to review the key vocabulary found in the covalent bonding topics, and is suitable for GCSE and IGCSE Level students. Clues and answers are as follows: In a covalent bond, a pair of electrons is ____________ between two atoms. [shared] A covalently bonded compound that is needed for photosynthesis to take place [Carbon dioxide] We do not need to draw the inner _________ in a dot-and-cross diagram [shells] This is a type of diagram we can draw to represent covalent bonding. [dot-and-cross] Covalent bonding only happens between _____- ________ atoms [non-metal] Covalent bonds are ________ [strong] A covalently bonded compound that is responsible for all life on Earth [Water] A covalently bonded compound that has the formula HCl [hydrogen chloride] These are shared between atoms during covalent bonding [electrons] After covalent bonding, each atom has a ______ outer shell. [full] Syllabus references that this resource satisfies (to name but a few): AQA GCSE Chemistry: **4.2.1.1 Chemical Trends:Covalent bonding occurs in most non-metallic elements and in compounds of non-metals. 4.2.1.4 Covalent Bonding: When atoms share pairs of electrons, they form covalent bonds. These bonds between atoms are strong 4.2.1.4 Covalent Bonding: The covalent bonds in molecules and giant structures can be represented in the following forms (dot and cross and ball and stick examples given in the specification) **Edexcel IGCSE Chemistry: ** 1.44: Know that a covalent bond is formed between atoms by the sharing of a pair of electrons 1.45: Understand covalent bonds in terms of electrostatic attractions 1.46: Understand how to use dot-and-cross diagrams to represent covalent bonds

This incredibly clear PowerPoint goes through the key calculations involved in working out the mol/dm cubed for solutions. Suitable for 'A' - Level and IBDP students, this PowerPoint even includes some great questions at the end that the students can try for themselves.

This PowerPoint presentation offers the perfect introduction to the alkanes unit of organic chemistry for advanced learners (e.g. 'A' - Level and IB students). Beautifully illustrated and clear, this resource will enhance your delivery of this topic immensely.

This professional PowerPoint bundle covers everything the students need to know for the 2016 Course Guide for IBDP Chemistry Topics 7 and 17: Equilibrium. This bundle includes two PPTs (which match the Course Guide): 7.1: Equilibrium 17.1: The Equilibrium Law Each PPT professionally covers all required areas of the Course Guide for this topic, including: Essential Ideas Nature of Science International Mindedness Theory of Knowledge Key Understandings Application/Skills Guidance These PPTs have been painstakingly developed over many years and are guaranteed to satisfy immediately. Not only will you save valuable time by purchasing these PPTs, but your students will also receive the very best instructional PPTs out there