This is a fully-resourced revision lesson that uses a combination of exam questions, understanding checks, quick tasks and quiz competitions to help the students to assess their understanding of the sub-topics found within Topic C3 (Chemical change) of the Edexcel GCSE Combined Science specification. The sub-topics and specification points that are tested within the lesson include: Acids, pH and the concentration of hydrogen ions The general reactions of the acids to produce salts Electrolysis of molten salts Electrolysis of aqueous solutions Writing half equations for the reactions at the electrodes Students will be engaged through the numerous quiz rounds whilst crucially being able to recognise those areas which require their further attention during general revision or during the lead up to the actual assessment

This is an engaging revision lesson which uses a range of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content within topic 7 (Chemical reactions) of the CIE IGCSE Chemistry (0620) specification. The lesson covers the content in both the core and supplement sections of the specification and therefore can be used with students who will be taking the extended papers as well as the core papers. The specification points that are covered in this revision lesson include: CORE Describe and explain the effect of concentration, particle size, catalysts (including enzymes) and temperature on the rate of reactions Interpret data obtained from experiments concerned with rate of reaction Understand that some chemical reactions can be reversed by changing the reaction conditions Define oxidation and reduction in terms of oxygen loss/gain. SUPPLEMENT Devise and evaluate a suitable method for investigating the effect of a given variable on the rate of a reaction Describe and explain the effects of temperature and concentration in terms of collisions between reacting particles. (An increase in temperature causes an increase in collision rate and more of the colliding molecules have sufficient energy (activation energy) to react whereas an increase in concentration only causes an increase in collision rate.) Predict the effect of changing the conditions (concentration, temperature and pressure) on other reversible reactions Demonstrate knowledge and understanding of the concept of equilibrium Define redox in terms of electron transfer Define oxidising agent as a substance which oxidises another substance during a redox reaction. Define reducing agent as a substance which reduces another substance during a redox reaction. Identify oxidising agents and reducing agents from simple equations The students will thoroughly enjoy the range of activities, which include quiz competitions such as “FROM NUMBERS 2 LETTERS” where they have to compete to be the 1st to get an important abbreviation whilst crucially being able to recognise the areas of this topic which need their further attention. This lesson can be used as revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

This is an engaging revision lesson which uses a range of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content within topic 7 (Rates of reaction and energy changes) of the Edexcel GCSE Chemistry specification. The specification points that are covered in this revision lesson include: Suggest practical methods for determining the rate of a given reaction Explain how reactions occur when particles collide and that rates of reaction are increased when the frequency and/or energy of collisions is increased Explain the effects on rates of reaction of changes in temperature, concentration, surface area to volume ratio of a solid and pressure (on reactions involving gases) in terms of frequency and/or energy of collisions between particles Describe a catalyst as a substance that speeds up the rate of a reaction without altering the products of the reaction, being itself unchanged chemically and in mass at the end of the reaction Explain how the addition of a catalyst increases the rate of a reaction in terms of activation energy Describe an exothermic change or reaction as one in which heat energy is given out Describe an endothermic change or reaction as one in which heat energy is taken in Recall that the breaking of bonds is endothermic and the making of bonds is exothermic Recall that the overall heat energy change for a reaction is: a exothermic if more heat energy is released in forming bonds in the products than is required in breaking bonds in the reactants b endothermic if less heat energy is released in forming bonds in the products than is required in breaking bonds in the reactants Calculate the energy change in a reaction given the energies of bonds (in kJ mol–1) Explain the term activation energy Draw and label reaction profiles for endothermic and exothermic reactions, identifying activation energy The students will thoroughly enjoy the range of activities, which includes a quiz competition called “E NUMBERS” where they have to recognise the differences between endothermic and exothermic reactions whilst crucially being able to recognise the areas of this topic which need their further attention. This lesson can be used as revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

This is an engaging revision lesson which uses a range of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content within topic 8 (Fuels and Earth Science) of the Edexcel GCSE Chemistry specification. The specification points that are covered in this revision lesson include: Recall that hydrocarbons are compounds that contain carbon and hydrogen only Describe and explain the separation of crude oil into simpler, more useful mixtures by the process of fractional distillation Recall the names and uses of the fractions Explain how hydrocarbons in different fractions differ from each other Describe the complete combustion of hydrocarbon fuels as a reaction Explain why the incomplete combustion of hydrocarbons can produce carbon and carbon monoxide Explain how carbon monoxide behaves as a toxic gas Explain how impurities in some hydrocarbon fuels result in the production of sulfur dioxide Explain some problems associated with acid rain caused when sulfur dioxide dissolves in rain water Explain why, when fuels are burned in engines, oxygen and nitrogen can react together at high temperatures to produce oxides of nitrogen, which are pollutants Evaluate the advantages and disadvantages of using hydrogen, rather than petrol, as a fuel in cars Explain how cracking involves the breaking down of larger, saturated hydrocarbon molecules (alkanes) into smaller, more useful ones, some of which are unsaturated (alkenes) The students will thoroughly enjoy the range of activities, which includes a quiz competition called “POLLUTE THE AIR…WITH THE ANSWER” where they have to compete to be the 1st to recognise a pollutant gas from a series of clues whilst crucially being able to recognise the areas of this topic which need their further attention. This lesson can be used as revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

This is a fully-resourced lesson which uses exam-style questions, quiz competitions, quick tasks and discussion points to challenge students on their understanding of topics C1 - C5, that will assessed on PAPER 3. It has been specifically designed for students on the AQA GCSE Combined Science course who will be taking the FOUNDATION TIER examinations but is also suitable for students taking the higher tier who need to ensure that the fundamentals are known and understood. The lesson has been written to cover as many sub-topics as possible, but the following have been given particular attention: The relative mass and charge of protons, electrons and neutrons Using the Periodic table to calculate numbers of the sub-atomic particles Writing elements and compounds in chemical symbol equations Covalent structures Drawing dot and cross diagrams for covalent and ionic compounds The transfer of electrons during the formation of an ionic bond Properties of metals and non-metals States of matter Conservation of mass and balancing symbol equations Calculating the relative formula mass Electrolysis of molten salts and aqueous solutions Extraction of metals In order to maintain challenge whilst ensuring that all abilities can access the questions, the majority of the tasks have been differentiated and students can ask for extra support when they are unable to begin a question. Step-by-step guides have also been written into the lesson to walk students through some of the more difficult concepts such as drawing dot and cross diagrams and writing chemical formulae. Due to the extensiveness of this revision lesson, it is estimated that it will take in excess of 3/4 teaching hours to complete the tasks and therefore this can be used at different points throughout the course as well as acting as a final revision before the PAPER 3 exam.

This fully-resourced lesson has been written to prepare students for the range of mathematical-based questions that they may face on the two OCR GCSE Chemistry papers. The lesson has been designed to contain a wide range of activities which includes 8 quiz competition rounds spread across the duration of the lesson to maintain engagement whilst the students assess their understanding. The mathematical skills covered in this lesson include: Calculating the number of sub-atomic particles in atoms and ions Writing chemical formulae for ionic compounds Identifying isotopes Using Avogadro’s constant to calculate the number of particles Calculating the relative formula mass Calculating amount in moles using the mass and the relative formula mass Balancing chemical symbol equations Calculating reacting masses Gas calculations using molar volume Calculating concentration of solutions Titration calculations Deducing the empirical formula Calculating energy changes in reactions Most of the resources have been differentiated two ways to allow students of differing abilities to access the work whilst still being challenged. In addition, step by step guides are used to demonstrate how to carry out some of the more difficult calculations such as the harder mole calculations and calculating masses in reactions This lesson could be used with higher ability students on the OCR GCSE Combined Science course by taking out the sections which are not applicable.

This is a fully-resourced lesson which uses exam-style questions, quiz competitions, quick tasks and discussion points to challenge students on their understanding of topics C6 - C10, that will assessed on PAPER 4. It has been specifically designed for students on the AQA GCSE Combined Science course who will be taking the FOUNDATION TIER examinations but is also suitable for students taking the higher tier who need to ensure that the fundamentals are known and understood. The lesson has been written to cover as many specification points as possible but the following sub-topics have been given particular attention: Hydrocarbons The first four members of the alkanes Fractional distillation of crude oil The properties of the different fractions The complete combustion of a hydrocarbon Detecting carbon dioxide, oxygen, hydrogen and chlorine gas Changes in the carbon dioxide levels in the atmosphere Deforestation Polluting gases The formation of acid rain The treatment of water The collision theory In order to maintain challenge whilst ensuring that all abilities can access the questions, the majority of the tasks have been differentiated and students can ask for extra support when they are unable to begin a question. Step-by-step guides have also been written into the lesson to walk students through some of the more difficult concepts such as the changes in the Earth’s atmosphere. Due to the extensiveness of this revision lesson, it is estimated that it will take in excess of 2/3 teaching hours to complete the tasks and therefore this can be used at different points throughout the course as well as acting as a final revision before the PAPER 4 exam.

This lesson describes the meaning of the atomic and mass number and explains how to calculate the number of protons, neutrons and electrons. The PowerPoint has been designed to cover the detail of points 1.4, 1.7, 1.8 and 1.10 of the Edexcel GCSE Chemistry and Combined Science specifications. The lesson begins by challenging the students to put the chemical symbols for astatine, oxygen, iodine and carbon together to form the word atomic. Time is taken to explain the meaning of the atomic number and to emphasise how the number of protons in the nucleus is unique to atoms of that element. The students will learn that as the number of electrons is always the same as the number of protons in an atom, the atomic number can be used to calculate the numbers of both of these particles. Moving forwards, the mass number is considered and having been given the number of neutrons in a lithium atom, the students are challenged to articulate how the mass number and atomic number were used in this calculation. A series of worked examples are done as a class before the students are given the opportunity to challenge their understanding.

An engaging lesson presentation (80 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within Topic 3 (Quantitative chemistry) of the AQA GCSE Chemistry specification (specification point C4.3). The lesson includes useful hints and tips to encourage success in assessments. For example, students are shown how to recognise whether to use Avogadro’s constant or the moles formula in a moles calculation question. The topics that are tested within the lesson include: Conservation of mass and balanced symbol equations Relative formula mass Mass changes when a reactant or product is a gas Moles Amounts of substances in equations Concentration of solutions Atom economy Molar volume Students will be engaged through the numerous activities including quiz rounds like “Number CRAZY” and “In the BALANCE” whilst crucially being able to recognise those areas which need further attention

This is a fully-resourced lesson that looks at how the transfer of electrons from metals to non-metals causes ionic bonds and compounds to form and then explores the different properties of these structures. The lesson includes a detailed and engaging lesson presentation (43 slides) and a task worksheet which has been differentiated two ways. The lesson begins by introducing the name of the type of bond, but does not go into any more detail at this stage. This is because the lesson is designed to allow the students to discover that in order for both of the atoms involved to get a full outer shell, electrons have to be transferred from one to the other. Over the course of the lesson, students will recognise that it is the metal that loses the electrons and becomes a positive ion whilst the non-metal gains the electrons and becomes a negative ion. There are lots of discussion and discovery points like this written into the lesson so that students can take ownership for their learning. Students are guided through drawing dot and cross diagrams to represent these compounds and as a result links are made to the topics of naming compounds, writing chemical formulae, forming ions and electron configurations. There are a number of quick competitions in the lesson which introduce new terms to the students. One such competition introduces the term lattice and the lesson builds from here to understand why ionic compounds have high melting and boiling points. Moving forwards, students will also learn that solid ionic compounds cannot conduct electricity whilst those in molten form or in an aqueous solution are able to. The final task of the lesson challenges the students to bring all of the information together they have seen to draw a dot and cross diagram for aluminium oxide, explain how it was formed and then explain how aluminium is extracted from this compound by electrolysis. This final task has been differentiated so that students who need extra assistance can still access the learning. This lesson has been written for GCSE aged students but could be used with higher ability younger students who are pushing on with the elements, compounds and mixtures topic

This is a fully-resourced lesson about group 7 of the Periodic Table, the halogens, which includes a lesson presentation (34 slides) and a differentiated worksheet. The lesson begins by challenging students to recognise and explain why the electronic structure of group 1 and group 7 means that they react together easily. As the lesson progresses, students will learn more and more properties about the halogens and key terms such as diatomic are used throughout so that students become accustomed to these. Moving forwards, students will carry out a series of displacement reactions so that they can recognise that the reactivity of these elements decreases as they go down the group. Students are challeged to explain this with reference to electron configuration and a differentiated worksheet will help those who need assistance to access this work. This lesson has been designed for GCSE students (14 - 16 year olds in the UK) but is suitable for younger students who might be carrying out a project on the Periodic Table

A fully-resourced lesson which prepares students for the range of mathematical-based questions that they could encounter on the two AQA GCSE Chemistry papers. The lesson contains a wide range of activities which include exam-style questions with markschemes embedded within the PowerPoint to enable the students to assess their current understanding. There are also 8 quiz competition rounds interspersed throughout the lesson to maintain engagement and motivation. The mathematical skills covered in this lesson include: Calculating the number of sub-atomic particles in atoms and ions Writing chemical formulae for ionic compounds Identifying isotopes Using Avogadro’s constant to calculate the number of particles Calculating the relative formula mass Calculating amount in moles using the mass and the relative formula mass Balancing chemical symbol equations Calculating reacting masses Gas calculations using molar volume Calculating the concentration of an unknown solution Calculating the atom economy and percentage yield Calculating energy changes in reactions Temperature and pressure and the position of equilibrium Most of the resources have been differentiated two ways to allow students of differing abilities to access the work whilst still being challenged. In addition, step by step guides are used to demonstrate how to carry out some of the more difficult calculations such as the harder mole calculations and calculating masses in reactions

This lesson explains the law of conservation of mass and applies this law to a closed system and a non-enclosed system. The PowerPoint and accompanying resources have been designed to cover point 1.48 of the Edexcel GCSE Chemistry specification and also covers that point in the Chemistry section of the Combined Science course. The lesson begins by introducing the law of the conservation of mass. Students will learn that they can expect questions which challenge them to prove that mass is conserved through the use of the relative formula mass. Therefore, the next section of the lesson focuses on the skills associated with this calculation and looks at more different formulae such as those with brackets. Students are given an opportunity to check their skills before trying to prove mass is conserved in three chemical reactions. All questions have displayed mark schemes so that students can assess their understanding. The rest of the lesson looks at instances of when the mass of the reactants does not equal the mass of the products. A practical method for the decomposition of copper carbonate is provided if the teacher wants to use it, so that students can collect results which show this difference in mass. Discussions are encouraged in order to get students to offer explanations as to why the mass of the products is lower. Once the gas has been identified, students are further challenged to consider apparatus that could be used to collect and record the results to again prove conservation

An engaging lesson presentation (73 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within unit C5 of the OCR Gateway A GCSE Chemistry specification. The topics that are tested within the lesson include: Percentage yield Concentration of solution Titrations Titration calculations Gas calculations Rate of reaction Factors affecting the rate of reaction Reversible reactions Equilibrium position Students will be engaged through the numerous activities including quiz rounds like “Under PRESSURE” and “Number CRAZY” whilst crucially being able to recognise those areas which need further attention

This is a fully-resourced revision lesson that uses a combination of exam questions, understanding checks, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within Topic C3 (Physical chemistry) of the Edexcel iGCSE Chemistry specification which has its’ first assessment in 2019. The topics that are tested within the lesson include: Energetics Rates of reaction Reversible reactions and equilibria Students will be engaged through the numerous quiz rounds whilst crucially being able to recognise those areas which require their further attention during general revision or during the lead up to the actual assessment.

This is an engaging revision lesson which uses a range of exam questions, understanding checks, quiz tasks and quiz competitions to enable students to assess their understanding of the content within topic 9 (The Periodic Table) of the Cambridge IGCSE Chemistry (0620) specification. The lesson covers the content in both the core and supplement sections of the specification and therefore can be used with students who will be taking the extended papers as well as the core papers. The specification points that are covered in this revision lesson include: CORE Describe the Periodic Table as a method of classifying elements and its use to predict properties of elements Describe the change from metallic to nonmetallic character across a period Describe lithium, sodium and potassium in Group I as a collection of relatively soft metals showing a trend in melting point, density and reaction with water Describe the halogens, chlorine, bromine and iodine in Group VII, as a collection of diatomic non-metals showing a trend in colour and density and state their reaction with other halide ions Predict the properties of other elements in Group VII, given data where appropriate Describe the transition elements as a collection of metals having high densities, high melting points and forming coloured compounds, and which, as elements and compounds, often act as catalysts Describe the noble gases, in Group VIII or 0, as being unreactive, monoatomic gases and explain this in terms of electronic structure State the uses of the noble gases in providing an inert atmosphere, i.e. argon in lamps, helium for filling balloons SUPPLEMENT Describe and explain the relationship between Group number, number of outer shell electrons and metallic/non-metallic character Identify trends in Groups, given information about the elements concerned Know that transition elements have variable oxidation states The students will thoroughly enjoy the range of activities, which include quiz competitions such as “Make sure you check every passage PERIODICALLY” where they have to scan summary passages about the table and decide if it is 100% correct whilst crucially being able to recognise the areas of this topic which need their further attention. This lesson can be used as revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

This is an engaging revision lesson which uses a range of exam questions, understanding checks, quick tasks and quiz competitions to enable students to assess their understanding of the content within topic 6 (Groups in the Periodic Table) of the Edexcel GCSE Chemistry specification. The specification points that are covered in this revision lesson include: Explain why some elements can be classified as alkali metals (group 1), halogens (group 7) or noble gases (group 0), based on their position in the periodic table Describe the pattern in reactivity of the alkali metals, lithium, sodium and potassium, with water; and use this pattern to predict the reactivity of other alkali metals Explain this pattern in reactivity in terms of electronic configurations Recall the colours and physical states of chlorine, bromine and iodine at room temperature Describe the pattern in the physical properties of the halogens, chlorine, bromine and iodine, and use this pattern to predict the physical properties of other halogens Describe the reactions of the halogens, chlorine, bromine and iodine, with metals to form metal halides, and use this pattern to predict the reactions of other halogens Describe the relative reactivity of the halogens chlorine, bromine and iodine, as shown by their displacement reactions with halide ions in aqueous solution, and use this pattern to predict the reactions of astatine Explain the relative reactivity of the halogens in terms of electronic configurations Explain why the noble gases are chemically inert, compared with the other elements, in terms of their electronic configurations The students will thoroughly enjoy the range of activities, which include quiz competitions such as “Make sure you check every passage PERIODICALLY” where they have to scan summary passages about the table and decide if it is 100% correct whilst crucially being able to recognise the areas of this topic which need their further attention. This lesson can be used as revision resource at the end of the topic or in the lead up to mocks or the actual GCSE exams

An engaging lesson presentation (72 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within unit C6 (Global Challenges) of the OCR Gateway A GCSE Combined Science specification. The topics that are tested within the lesson include: Extracting metals Extracting iron Extracting aluminium Cracking oil fractions Water for drinking Students will be engaged through the numerous activities including quiz rounds like “EXTRACT the non-FACT” and “Say what you SEE” whilst crucially being able to recognise those areas which need further attention