This REVISION resource has been designed to motivate and engage students whilst they are challenged on their knowledge of the content in topics C6-C10 of the AQA Trilogy GCSE Combined Science specification which can be assessed on PAPER 4. This is fully-resourced and contains a detailed PowerPoint (118 slides) and accompanying worksheets, some of which have been differentiated. The resource was written with the aim of covering as many C6-C10 sub-topics as possible, but the following ones have received particular focus: Pure substances in Science Chromatography Detecting gases Reversible reactions Changing conditions and the position of the equilibrium Factors affecting the rate of a chemical reaction The structure of the alkanes Complete combustion of the alkanes Cracking and the alkenes Fractional distillation of crude oil This resource can be used in combination with the PAPER 3 revision resource which covers the content in Chemistry topics C1 - C5 as well as the other AQA GCSE Combined Science REVISION lessons which I’ve uploaded

This is a fast-paced lesson that looks at how particle size affects the rate of reaction and challenges the students to carry out a practical to obtain valid results to back up the theory. It is a fully-resourced lesson that consists of an engaging lesson presentation (19 slides) and a calculation worksheet which is differentiated two ways to enable those students who find the maths hard to have a way to access the learning. Students are guided through a method of calculating the surface area and volume of the object and calculating the surface area to volume ratio. Using the answers to their calculations, they will complete a summary passage which explains why having more exposed reacting particles leads to an increased rate of reaction. Students will then carry out a practical where they have to determine which cube of jelly to use to make jelly the fastest in order to test their summary passage is valid. This lesson has been designed for GCSE students but could be used with younger students looking at chemical reactions and investigating the factors that affect the rate.

This is a concise lesson that looks at Dmitri Mendeleev’s periodic table, the changes and tweaks that he made and compares it against the modern day version of the table. The aim of the lesson is to show students how accurate Mendeleev was with his table, even with those elements that had not yet been discovered. They will work through some examples with eka-silicon and eka-manganese and also compare eka-aluminium’s predictions against those of gallium. Links are made to the development of the atom so students can understand how the atomic number was used by Mendeleev and how it is used now. Students are set homework to look at the developments that were made by other scientists as homework and this is not covered in this lesson.

This detailed and engaging lesson uses a range of tasks, discussion points and quick competitions to explore how the structure of metals is related to their properties. The lesson begins by providing the melting points for four metals and challenging the students to work out why mercury would be considered to be the odd one out. This task enables students to recognise that most metals are solid at room temperature and then the next part of the lesson guides students through explaining how this is related to the structure. The range of quick competitions are used to maintain engagement but also to introduce new terms such as lattice and delocalised so that students can recognise these in descriptions and use them accurately in their own. Students will recall that metals are good conductors of electricity and heat and now will be able to explain this with reference to the free electrons. Progress checks are written into the lesson at regular intervals so understanding can be checked at critical points and misconceptions addressed. The final part of the lesson makes link to related topics such as alloys and naming compounds. This lesson has been written for GCSE aged students.

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 C4 (Organic chemistry) of the Edexcel iGCSE Chemistry specification which has its’ first assessment in 2019. The topics that are tested within the lesson include: Crude oil Alkanes Alkenes Alcohols Carboxylic acids Polymers 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 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 C7 (Rates of reaction and energy changes) of the Edexcel GCSE Combined Science specification. The sub-topics and specification points that are tested within the lesson include: Explain the effects on rates of reaction of changes in temperature, concentration and pressure Be able to define a catalyst and explain how this reduces the activation energy Describe an endothermic and exothermic reactions Calculate the energy change in a reaction Draw reaction profiles for endothermic and exothermic reactions, identifying activation energy 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 GCSE terminal exams

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 C8 (Fuels and Earth Science) of the Edexcel GCSE Combined Science specification. The sub-topics and specification points that are tested within the lesson include: The separation of crude oil into simpler, more useful mixtures by fractional distillation The differing properties of the fractions The complete and incomplete combustion of hydrocarbons The chemical process of cracking The Earth’s early atmosphere Human activity and climate change The composition of today’s atmosphere 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 GCSE terminal exams

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 3 (Chemical changes) of the Edexcel GCSE Chemistry specification. The specification points that are covered in this revision lesson include: Recall that acids in solution are sources of hydrogen ions and alkalis in solution are sources of hydroxide ions Recall that the higher the concentration of hydrogen ions in an acidic solution, the lower the pH; and the higher the concentration of hydroxide ions in an alkaline solution, the higher the pH Recall that as hydrogen ion concentration in a solution increases by a factor of 10, the pH of the solution decreases by 1 Recall that a base is any substance that reacts with an acid to form a salt and water only Recall that alkalis are soluble bases Explain the general reactions of aqueous solutions of acids with metals, metal oxides, metal hydroxides and metal carbonates to produce salts Describe the chemical test for hydrogen and carbon dioxide Describe a neutralisation reaction as a reaction between an acid and a base Explain an acid-alkali neutralisation as a reaction in which hydrogen ions (H+) from the acid react with hydroxide ions (OH–) from the alkali to form water Explain how a soluble salts is prepared from an acid and an insoluble reactant Explain how soluble salts are prepared from an acid and a soluble reactant Recall that electrolytes are ionic compounds in the molten state or dissolved in water Explain the movement of ions during electrolysis Explain the formation of the products in electrolysis Write half equations for reactions occurring at the anode and cathode in electrolysis Explain oxidation and reduction in terms of loss or gain of electrons The students will thoroughly enjoy the range of activities, which includes quiz competitions like “From NUMBERS 2 LETTERS” where they compete to be the 1st to get the abbreviation Oil Rig 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 revision resource has been designed to include a range of activities that will engage the students whilst they assess their understanding of the content of topic C12 of the CIE IGCSE Combined Science specification for examination in June and November 2020 and 2021. Exam questions, quick tasks and quiz competitions such as “Are you on FORM” will challenge the students on their recall of the content as well as their ability to apply this knowledge. The lesson was written to cover as much of the content as possible, but the following topics have received particular attention: • The conditions needed for cracking • Alkanes and alkenes as the products of cracking • Alkanes as saturated hydrocarbons with single covalent bonds between their atoms • Alkenes as unsaturated hydrocarbons with one double covalent bond • Testing between saturated and unsaturated hydrocarbons using aqueous bromine solution • The fractional distillation of crude oil • The uses of the fractions This resource contains an engaging PowerPoint (51 slides) and associated worksheets and is ideal for use at the end of this topic or in the lead up to mocks or the actual terminal exams

This revision resource contains an engaging PowerPoint (56 slides) and associated worksheets, one of which has been differentiated two ways to allow students of differing abilities to access the work. The range of activities cover the content of Topic C4 (Stoichiometry) of the CIE IGCSE Combined Science specification, for examination in June and November 2020 and 2021. The aim was to cover as much of the content as possible but the following topics have received particular attention: Naming compounds containing 2 or 3+ elements Constructing word equations for general chemical reactions Monatomic or diatomic molecules Writing formulae for ionic compounds using the charges on the ions Balancing symbol equations Writing fully balanced chemical symbol equations with state symbols Students are given hints and guidance throughout the lesson so they can build confidence in the lead up to an end of topic test, mocks or the terminal exams.