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)

This is an informative and engaging lesson, which has been designed for GCSE but is perfectly suitable for younger students who are studying the states of matter. Students will have encountered this topic at KS3 and potentially before, and therefore the aim of this lesson is to consolidate that knowledge and to deepen in critical areas. A number of quick competitions have been written into the lesson to maintain engagement and to test prior knowledge in a different way. In addition, progress checks are found at regular intervals so that students can constantly assess their understanding. The start of the lesson looks at the different properties of the three states and ensures that particle diagrams are not only recognised but can be explained. A lot of students consider elements to be in one state only at all times and therefore time is taken to show them how the specific temperature is the determining factor on the state. Students are guided through using the melting and boiling points to determine which state a substance is in at a given temperature. The rest of the lesson focuses on changing state and the change in the particles at each of these stages.

This is a concise, fast-paced lesson which guides students through the critical skills needed to calculate the atom economy of a chemical reaction. It has been designed for GCSE students and focuses on the calculation as well as interpreting the final value. In order to calculate the mass of the desired product and other products, students have to be able to calculate the relative formula mass - therefore time is taken to revisit these skills and worked examples are used with this and the actual calculations to enable the students to visualise how they should set their work out. The lesson finishes with some progress check questions where students are challenged to state which of four chemical reactions has the highest atom economy. This lesson could be taught in combination with the percentage yield topic and an accompanying lesson on that calculation is available on this site.

This lesson has been written for GCSE students, with the main focus being to introduce reversible reactions, show them how to represent them in both word and symbol equations, and to look at some well-known examples. Related topics such as the position of the equilibrium and endothermic and exothermic reactions are briefly mentioned so that students can recognise the potential crossover between topics. Some time is taken during the lesson to challenge the students to write a balanced symbol equation having been given a description of a reversible reaction. This task is differentiated with an assistance sheet so that all are able to access the learning. There are a number of these progress checks in this short lesson so that students can assess their understanding on a regular basis. Students will learn that the reaction in one direction will be exothermic and why this matters in terms of temperature and the equilibrium position. Increasing pressure and the number of moles is also discussed and an answer explained.

This is a fully-resourced lesson that looks at the meaning of a limiting reactant in a chemical reaction and guides students through how to apply this to a number of calculations. Step by step guides are used to go through worked examples so students are able to visualise how to set out their work. The lesson begins with a fun analogy involving sausages and potatoes so that students can identify that the potatoes limited the sale of food. Alongside this, students will learn the key term excess. Some time is then taken to ensure that students can spot the limiting reactant and the one in excess in actual chemical reactions and method descriptions. Moving forwards, students will be guided through two calculations that involve limiting reactants - those to calculate the theoretical yield and the other to calculate a balanced symbol equation. Other skills involved in these calculations such as calculating the relative formula mass are recalled and a few examples given to ensure they are confident. The question worksheet has been differentiated two ways so that any students who need extra assistance can still access the learning. This lesson has been written for GCSE students.

An engaging lesson presentation (49 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 (Monitoring and controlling chemical reactions) of the OCR Gateway A GCSE Combined Science specification. The topics that are tested within the lesson include: Concentration of solution 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

An engaging lesson presentation (44 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 module C1 (Particles) of the OCR Gateway A GCSE Chemistry specification. The topics that are tested within the lesson include: Introducing particles Chemical and physical changes Atomic structure Isotopes Developing the atomic model Students will be engaged through the numerous activities including quiz rounds like “Order, Order” whilst crucially being able to recognise those areas which need further attention

An engaging lesson presentation (77 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 C3 (Chemical reactions) of the OCR Gateway A GCSE Chemistry specification. The topics that are tested within the lesson include: Formulae of elements and molecules Formulae of ionic compounds Conservation of mass Chemical equations Half equations The mole Exothermic and endothermic reactions The pH scale Hydrogen ions and pH Electrolysis of molten salts Electrolysis of solutions Students will be engaged through the numerous activities including quiz rounds like “E Numbers” whilst crucially being able to recognise those areas which need further attention

An engaging lesson presentation (95 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 4 (Chemical changes) of the AQA GCSE Chemistry specification (specification point C4.4) The topics that are tested within the lesson include: Reactivity series Extraction of metals and reduction Oxidation and reduction in terms of electrons Reactions of metals with acids Neutralisations Titrations Electrolysis Half equations Students will be engaged through the numerous activities including quiz rounds like “It’s time for ACTION” and “Number CRAZY” whilst crucially being able to recognise those areas which need further attention

An engaging lesson presentation (70 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 the Chemistry unit C1 (Atomic structure and the Periodic Table) of the AQA GCSE Combined Science specification (specification unit C5.1). The topics that are tested within the lesson include: Mixtures Development of the model of the atom The subatomic particles Electronic structure The periodic table Metals and non-metals Group 0 Group 1 Group 7 Students will be engaged through the numerous activities including quiz rounds like “UNLOCK the safe" whilst crucially being able to recognise those areas which need further attention

An engaging lesson presentation (77 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 2 (Bonding, structure and properties of matter) of the AQA GCSE Chemistry specification (specification point C4.2) The topics that are tested within the lesson include: Chemical bonds Ionic bonding Ionic compounds Properties of ionic compounds Covalent bonding Metallic bonding Properties of metals and alloys The three states of matter State symbols Structure and bonding of carbon Size of particles and their properties Students will be engaged through the numerous activities including quiz rounds like “The name’s BOND…” whilst crucially being able to recognise those areas which need further attention