An engaging lesson presentation (54 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 C8 (Chemical analysis) of the AQA GCSE Combined Science specification (specification point C5.8) The topics that are tested within the lesson include: Pure substances Chromatography Identification of common gases Students will be engaged through the numerous activities including quiz rounds like “Take the CHROMATOGRAPHY hotseat” whilst crucially being able to recognise those areas which need further attention

A fully resourced lesson presentation (53 slides) and associated worksheet that uses a combination of exam questions, understanding checks, quick tasks and a quiz competition to help the students to assess their understanding of the topics found within TOPIC 5 (Energy changes) of the AQA GCSE Chemistry specification (specification point C4.5). The lesson includes useful hints and tips to encourage success in assessments. For example, students are shown how to use the energy change in a chemical reaction to work out if it is an endothermic or exothermic reaction. The topics that are tested within the lesson include: Endothermic and exothermic reactions Reaction profiles Calculating energy changes in reactions Fuel cells Students will be engaged through the numerous activities including a summary round called “E NUMBERS” which requires them to use all of their knowledge to work out the type of reactions that are shown.

A fully resourced lesson, which includes an informative lesson presentation (22 slides) and differentiated worksheets that guide students through the topic of balancing symbol equations. The lesson takes the students through the steps involved and begins by getting them to be able to recognise when an equation is balanced or not. The difficulty of the equations to be balanced increases as the lesson progresses and students are given helpful hints to aid their progress. This lesson is suitable for both KS3 and GCSE students

A fully resourced lesson that includes a lesson presentation (31 slides) and a related newspaper story to allow the students to compare the structure and properties of two allotropes of carbon, diamond and graphite. Students are guided through the structures and then challenged to work out how this relates to their respective properties. Time is taken to focus on the comparison between the two in terms of their ability to conduct electricity. A step by step answer is used to explain why diamond cannot conduct electricity so that students can use this when forming their answer for graphite. This lesson has been designed primarily for GCSE students (14 - 16 year olds) where questions comparing these two substances are common but it is suitable for use with younger students too.

A fully-resourced lesson that teaches students how to calculate the concentration of a solution in the units grams per decimetres cubed and mol per decimetre cubed. The lesson includes a concise but detailed lesson presentation (20 slides) and a set of differentiated questions. The lesson begins by introducing students to volumes in decimetres cubed and time is taken to ensure that students are able to convert to this measurement. Moving forwards, students are guided through how to calculate the concentration in both units through the use of worked examples. Differentiated questions are available so that all abilities can access the work. This lesson has been written for GCSE students (14 - 16 year olds in the UK) but could be used with students who are beginning their A level Chemistry studies

A fully-resourced lesson that looks at a number of the allotropes of carbon which need to be known for GCSE Science. The lesson includes an engaging lesson presentation (40 slides) and associated worksheets. The lesson begins by recalling the definition of an allotrope. Students are then introduced to graphene and will understand how this is related to graphite and know the properties of these two materials that are shared. Time is taken to ensure that students can explain why graphene is able to conduct electricity. Moving forwards, students will meet the family of allotropes known as the fullerenes and will see some important details about a few of these. This lesson has been written for students studying GCSE (14 - 16 year olds in the UK).

An engaging lesson presentation (37 slides) which gets students to test their practical skills by carrying out the four identification tests for oxygen, hydrogen, carbon dioxide and chlorine. The lesson begins by using a competition called “Guess the gas” where students have to used clues to identify the four colourless gases which will be used in the lesson. Moving forwards, students will meet the pieces of equipment that will be used in these tests. Practical instructions for each of the tests are included in the lesson so that students can produce the gas and then carry out the test. There are regular progress checks throughout the lesson so that students can assess their understanding. This lesson is suitable for both KS3 and GCSE students

A fully-resourced lesson which looks at the saturated hydrocarbons known as the alkanes and focuses on their structure and reactions. The lesson includes an engaging lesson presentation (38 slides) and an associated worksheet which is differentiated. The lesson begins with the introduction of the name of this group and then a step-by-step guide is used to show students how to draw the displayed formula. Once the first four have been drawn, students are shown how to calculate the general formula for the alkenes and then challenged to do the same for the alkanes. Moving forwards, students will meet the key term, saturated, and time is taken to ensure that the meaning of this word is understood in the context of this lesson. Once they have been introduced to bromine water, students are challenged to work out what will happen when this substance is added to an alkane and they have to explain their answer. The remainder of the lesson looks at the complete and incomplete combustion of the alkanes, focusing on the different products of these reactions and specifically the problems associated with carbon monoxide. There are regular progress checks throughout the lesson to allow the students to check on their understanding.

A resourced lesson which guides students through the method of writing word equations for a range of different chemical reactions. The lesson includes an engaging and informative lesson presentation (33 slides) and an associated worksheet containing questions. The lesson begins by reminding students of the form which word equations take, with the reactants chemically changing into the products. Moving forwards, time is taken to show students how to work out the name of a compound that contains either 2 or 3 elements. This moves nicely into the reaction of acids and how to name the salt that is produced. Students are shown the general formula for the reactions of acids with a metal, a metal carbonate and a metal oxide or hydroxide so that they can form word equations for each of these reactions in the progress check task. The final section of the lesson introduces reversible reactions to the students and shows them the symbol that is used in these word equations to replace the arrow. There are regular progress checks throughout the lesson to allow the students to check on their understanding and thorough explanations of the required answers. This lesson has been written for GCSE students but is perfectly suitable for KS3 students too.

A fully-resourced lesson which looks at the gaseous reversible reaction known as the Haber Process and then explores and explains why the specific conditions are chosen for this reaction. The lesson includes a detailed lesson presentation (29 slides) and associated worksheets which are differentiated. The lesson begins by challenging the students to use a description of the reaction to complete the balanced symbol equation. A quiz competition involving both Chemistry and Maths skills is used to reveal the temperature and pressure which are chosen for this reaction. Students will learn that this only produces a yield of 30% and therefore are encouraged to question why these conditions are chosen. In doing so, they are made to wear two “hats”, so that they consider it from both a Science angle but also a business angle. Their knowledge of reversible reactions and the effect of changing either the temperature or the pressure on the position of the equilibrium are constantly challenged and then checked through a range of progress check questions. As a result of this lesson, students will understand that these conditions are a compromise and be able to explain why. This lesson has been designed for GCSE students (14 - 16 year olds in the UK).

A fully-resourced lesson which guides students through drawing, writing and recognising the electronic configurations of atoms and ions. The lesson includes an engaging lesson presentation (33 slides), an associated worksheet and a competition worksheet. The lesson begins by introducing the students to the number of electrons that can be held on the first three electron shells. They are then shown how to draw an electronic configuration and write this in brackets form. Students are given the opportunity to apply this knowledge by drawing the configuration of first 20 elements of the Periodic Table. Moving forwards, students are guided to enable them to discover how the electron configuration is linked to the position of an atom in the Periodic Table. The remainder of the lesson focuses on ions and how the configuration of these substances can be recognised. Some time is taken to explain how ions are formed from atoms and the lesson finishes with a competition which challenges students to identify atoms or ions from their configurations to form a word. There are regular progress checks throughout the lesson to allow the students to check on their understanding and a range of quiz competitions to maintain engagement. This lesson has been written for GCSE students but could be used with younger students, especially the initial part of the lesson on atoms and the link to the Periodic Table

An engaging lesson presentation (39 slides) with associated differentiated worksheets that looks at they key differences between pure and impure substances and briefly explores how a mixture like an alloy can still be very useful. The lesson begins by challenging the students to recognise 4 diagrams of pure substances from a selection of 5. This will lead students to the definition of pure (in Science) which is likely to be different to what they have encountered in everyday language. The next task gets the students to draw a graph showing the melting and boiling points of pure water. This will enable them to compare the melting point against that of an impure substance and therefore recognise that this difference can be used as point to decide on purity. An example of gritting is used to explain how this change in melting point can be utilised and then the students are challenged to apply this new-found knowledge to the situation of adding salt to boiling water when making pasta. The remainder of the lesson focuses on some famous mixtures. Beginning with air, students will be able to visualise how this mixture is made of a number of gases, each with different boiling points which allows them to be separated by fractional distillation. Alloys are briefly explored so that students know why these mixtures are used for certain functions over pure metals and the summary passage for this task has been differentiated two ways so that all can access the work. Progress checks have been written into the lesson at regular intervals so that students can check their understanding and a range of quick quiz competitions are used to maintain engagement whilst introducing new terms in a fun manner. If you want to look into alloys in greater detail, then this lesson could be combined with the one named “alloys” which is also uploaded.

A fully-resourced lesson that looks at the reaction of an acid with a metal or a metal carbonate and guides students through writing word and symbol equations to represent these reactions. This lesson includes a lesson presentation (39 slides) and differentiated worksheets. The lesson begins by challenging the students to spot a pattern when naming the salts that are produced from these reactions. Students are shown how the second word of the salt’s name depends upon the particular acid involved in the reaction and are given opportunities to watch this in worked examples before applying their knowledge to a question. Students will also meet the general formula for the reaction of an acid with a metal carbonate. Moving forwards, a step by step guide is used to show the students how to write fully balanced symbol equations. Time is taken to specifically show them how to write accurate chemical formulae, including those which involve a bracket as is common in this topic. The final task challenges the students to bring all of this information together to write word and symbol equations for three reactions. This worksheet is differentiated two ways so students who require some assistance can still access the work. This lesson has been written for GCSE students (14 - 16 year olds in the UK)

A quick, concise lesson presentation (15 slides) which together with a question worksheet focuses on ensuring that students can define an isotope and pick these substances out from a selection of substances. The lesson begins by looking at the number of sub-atomic particles in an aluminium atom so that students can recall what is shown by the atomic and mass numbers. This will enable students to calculate the number of protons, neutrons and electrons in three given isotopes and as a result, complete a definition of these substances. The remainder of this short lesson involves 4 application questions where students either have to recognise isotopes from a table or from a diagram and also are asked to write out the formula of an isotope. Ideally this lesson will be taught in conjunction with a lesson on atomic structure.

This lesson has been designed to enable students to recognise the key stages in the formation of the early atmosphere and to also show how today’s atmosphere was formed. The lesson has been primarily designed for GCSE students but is suitable for higher ability younger students who perhaps are studying the Earth and its formation. The lesson begins by checking that the students know the percentages of the different gases found in the modern day atmosphere. Some time is taken to check on their mathematical skills by challenging them to produce a pie chart to represent these different percentages. Students are then asked to predict how they think the percentage of oxygen, carbon dioxide and water vapour would have differed from now to the early atmosphere. The key steps in the formation are then introduced and critical points discussed. Students will learn about the volcanic activity, formation of the oceans and photosynthesis as crucial points in the change to the percentages of those three gases. A number of progress checks are written into the lesson, which check knowledge from this lesson and related topics such as the reaction of acids and gases.

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.

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