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

An informative lesson presentation (37 slides) and accompanying worksheets that guides students through the different methods that can be used to rearrange formulae as they will be required to do in the Science exams. The lessons shows them how to use traditional Maths methods involving inverse operations and also equation triangles to come to the same result. These are constantly linked to actual examples and questions to show them how this has to be applied. There are regular progress checks, with explained answers, so that students can assess their understanding.

This lesson presentation looks at the carboxylic acids and focuses on the names, displayed formula, chemical formulae and reactions of this homologous series. The lesson begins with a bit of fun which gets enables the students to recognise that the functional group is COOH. A step by step guide is used to show the students how to draw the displayed formula for ethanoic acid, using the functional group before they apply their knowledge to draw the remaining acids in the first four. This series are connected by a general formula and students are shown how it is worked out for the alkanes and the alkenes so that students can work it out for the acids. Moving forwards, the reactions of these acids is shown and related to the reactions of acids that was previously learnt. Students will recall how to write the name of the salt and the balanced symbol equation. This lesson has been written for GCSE students

This lesson has been written with the aim of engaging students in the topic of simple and giant covalent molecules, as this is a topic which is often considered to be boring or is brushed over. A variety of tasks have been used to maintain the interest whilst ensuring that they key details and Science are known and understood. The lesson begins with a quick recap task where students have to recognise a covalent bond from a description and fill the missing part. Moving forwards, they are introduced to the fact that covalent molecules can be simple or giant. They are then presented with a table showing some properties of covalent molecules and having to group them as simple or giant in the short space of time that the table remains displayed on the board. This task challenges their observational skills, something which will again be tested later in the lesson as they study the structure of graphite and diamond. Time is taken to ensure that key details such as the strong covalent bonds in both sets of molecules is understood and that it is the weak intermolecular forces which are actually responsible for the low melting and boiling points. The last part of the lesson introduces diamond and graphite as allotropes of carbon and students will briefly learn why one of these conducts electricity whilst the other doesn’t. If you want a lesson about these allotropes in more detail, then please look for “Diamond and Graphite”. Progress checks have been written into the lesson at regular intervals so that students are constantly assessing their understanding and so misconceptions are quickly identified. This lesson has been written for GCSE students (14 - 16 years of age in the UK)

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.

This lesson describes how the chemical formula of an ionic compound can be deduced using the formulae of the constituent ions. The PowerPoint and accompanying worksheet have been designed to cover point 1.26 of the Edexcel GCSE Chemistry specification and also cover the same point in the Chemistry section of the Combined Science course. This lesson builds on the knowledge acquired in previous lessons when students learnt how to identify the charge of an ion based on the group of the atom. A step by step guide is used to show them how the transfer method can be used to write the formulae for compounds including halides and oxides. Time is taken to introduce the formulae for sulphate, carbonate, hydroxide and nitrate ions and the students are shown how brackets may be needed when writing formulae for compounds containing these ions. Understanding checks in the form of questions and quiz competitions are used to allow the students to assess their progress

This lesson looks at the homologous series of alcohols, focusing on the properties that they share and guiding students through naming and drawing displayed formula to represent them. It has been designed for GCSE students and time is taken to embed a few selected key details as dictated by the exam board specification. The lesson begins with students meeting the formula for ethanol. This substance will provide the backbone to their understanding as they are guided through drawing the displayed formula so they can visualise how it is done and use to draw diagrams for the others. Students are shown how the general formula for the alkanes and alkenes can be worked out and then challenged to use this to work out the general formula for the alcohols. There is a brief look at the reactions with oxygen and the products that can be made depending upon whether sufficient oxygen is available or not.

This lesson uses 17 multiple-choice questions to challenge students to apply their understanding to the calculation sections of the course. The PowerPoint and accompanying resources are designed to act as revision during the final weeks leading up to the AQA GCSE Combined chemistry exams and the following topics are covered: Atoms and ions Isotopes Concentration of solutions Mole calculations using Avogadro’s constant Calculating relative formula mass Mole calculations using mass and relative formula mass Calculating masses in reactions Calculating energy changes in reactions Calculating the mean rate of reaction All 17 questions have answers embedded into the PowerPoint along with explanations and are followed by additional tasks to further check understanding if it was initially limited.

This lesson is fully-resourced, engaging and detailed and explains how the Contact process is one of the 3 steps involved in making sulfuric acid. The PowerPoint and accompanying resources, which are differentiated, have been written to cover point C6.1(d) of the OCR Gateway A GCSE Chemistry specification. The lesson begins with a challenge where students have to use the 1st letters of the answers to questions on previously covered topics to come up with the word CONTACT. At this point, the students are introduced to the contact process as the 2nd step in a 3 stage process to make sulfuric acid. The lesson goes through the details of each of the 3 steps but particular time is spent exploring the conditions needed for the contact process in step 2. Students are continuously tested on their knowledge of reversible reactions and the key concepts to do with equilibrium position and equilibrium yield are explained so they can understand how the conditions of 2 atmospheres and 450 degrees celsius are chosen. Again through a prior knowledge check of empirical formula, the students will be introduced to vanadium oxide as the catalyst. As well as exam-style questions with displayed answers to check on current understanding, there are discussion points as well as quick quiz competitions to introduce key terms and values in a memorable way.

A fun and engaging lesson presentation (74 slides) and accompanying differentiated worksheets that uses exam questions with displayed mark schemes and competitions to enable students to assess their understanding of Module C4 (Predicting and identifying reactions and products). The following topics within the combined Science specification are covered by the tasks: C4.1 Predicting chemical reactions Group 1 - the alkali metals Group 7 - the halogens Halogen displacement reactions Group 0 - the noble gases Reactivity of elements C4.2 Identifying the products of chemical reactions Detecting gases Students will be able to use the understanding checks to see which areas of the specification need more attention

A fully-resourced lesson which explores how ions are formed from atoms. The lesson includes an engaging lesson presentation (33 slides) and an associated worksheet to be used during an understanding check. The first part of the lesson focuses on atoms and specifically on getting students to recall that they contains the same number of protons and electrons and this is why they have no charge. By ensuring that they are confident with this fact, they will be able to understand why ions have a charge. Students will learn that ions have full outer shells of electrons and this change in the number of this sub-atomic particle leads to the charge. They are shown examples with aluminium and oxygen and then challenged to apply this new-found knowledge to a task where they have to explain how group 1, 2, 5 and 7 atoms become ions. The final part of the lesson looks at how ion knowledge can be assessed in a question as they have to recognise the electron configuration of one and describe how many sub-atomic particles are found in different examples. There are regular progress checks throughout the lesson to allow the students to check on their understanding. This lesson has been written for GCSE students but could be used with higher ability KS3 students who are looking to extend their knowledge past basic atomic structure

An engaging lesson presentation (46 slides) which looks at the fractional distillation of crude oil and focuses on the properties of the different fractions. The aim at the start of the lesson is to ensure that students understand that this process can be broken down into evaporation followed by condensation. Moving forwards, a fun competition is used to introduce the students to the names of some of the important fractions that are produced by this process. At the same time, they will learn the relative position that each fraction condenses on the fractionating column and will be taught that they need to know this position with relation to the other fractions. Students will learn that the fractions have differing properties depending on where they condense and they are challenged to compare fractions by viscosity, length of hydrocarbon and boiling point. There are regular progress checks throughout the lesson to allow the students to check on their understanding. This lesson has been written for GCSE students.

An engaging lesson presentation (82 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 C4 (Predicting and identifying reactions and products) of the OCR Gateway A GCSE Chemistry specification. The topics that are tested within the lesson include: Group 1 - the alkali metals Group 7 - the halogens Halogen displacement reactions Group 0 - the noble gases The transition metals Reactivity of elements Detecting gases Detecting cations Students will be engaged through the numerous activities including quiz rounds like “Crack the CODE” and “Blockbusters” whilst crucially being able to recognise those areas which need further attention