This is a detailed and 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 (Waves) of the Pearson Edexcel IGCSE Physics 9-1 specification (4PH1) for first assessment in June 2019. The specification points that are covered in this revision lesson include: Use the following units: degree (°), hertz (Hz), metre (m), metre/second (m/s) and second (s) Explain the difference between longitudinal and transverse waves Know the definitions of amplitude, frequency, wavelength and period of a wave Know and use the relationship between the speed, frequency and wavelength of a wave Use the relationship between frequency and time period Explain that all waves can be reflected and refracted Know that light is part of a continuous electromagnetic spectrum that includes radio, microwave, infrared, visible, ultraviolet, x-ray and gamma ray radiations and that all these waves travel at the same speed in free space Know the order of the electromagnetic spectrum in terms of decreasing wavelength and increasing frequency, including the colours of the visible spectrum Explain some of the uses of electromagnetic radiations Draw ray diagrams to illustrate refraction Know and use the relationship between refractive index, angle of incidence and angle of refraction Describe the role of total internal reflection in transmitting information along optical fibres and in prisms Explain the meaning of critical angle c Know and use the relationship between critical angle and refractive index Know that sound waves are longitudinal waves which can be reflected and refracted Know that the frequency range for human hearing is 20–20 000 Hz Understand how the loudness of a sound relates to the amplitude of vibration of the source The students will thoroughly enjoy the range of activities, which include quiz competitions such as “Should you WAVE goodbye” where they have to decide whether a passage about a sub-topic of waves is completely correct whilst all the time evaluating and assessing which areas of this topic will 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 International 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 1 (General Physics) of the CIE IGCSE Physics (0625) 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 Define speed and calculate average speed from total distance divided by total time Plot and interpret a speed-time graph or a distance-time graph Recognise from the shape of a speed-time graph when a body is at rest, moving at a constant speed or changing speed Calculate the area under a speed-time graph to work out the distance travelled for motion with constant acceleration Show familiarity with the idea of the mass of a body State that weight is a gravitational force Distinguish between mass and weight Recall and use the equation W = mg Recall and use the equation density = mass divided by volume Understand friction as the force between two surfaces which impedes motion and results in heating Calculate moment using the product force × perpendicular distance from the pivot Identify changes in kinetic, gravitational potential, chemical, elastic (strain), nuclear and internal energy that have occurred as a result of an event or process Recognise that energy is transferred during events and processes, including examples of transfer by forces (mechanical working), by electrical currents (electrical working), by heating and by waves Apply the principle of conservation of energy to simple examples Describe how electricity or other useful forms of energy may be obtained from a range of sources Show a qualitative understanding of efficiency Demonstrate understanding that work done = energy transferred Relate (without calculation) power to work done and time taken, using appropriate examples SUPPLEMENT Distinguish between speed and velocity Define and calculate acceleration Understand deceleration as a negative acceleration Describe, and use the concept of, weight as the effect of a gravitational field on a mass State Hooke’s Law and recall and use the expression F = k x, where k is the spring constant Apply the principle of moments to different situations Understand that vectors have a magnitude and direction The students will thoroughly enjoy the range of activities, which include quiz competitions such as “Are you the KING of the KINGDOMS” where they have to name the kingdoms involved based on a feature 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 IGCSE exam

This revision lesson contains a motivating and engaging powerpoint (67 slides) and associated worksheets which have been designed to challenge student knowledge of the Periodic Table. The lesson involves a wide range of activities which include exam questions with clear answers to allow students to self-assess, quiz competitions and differentiated tasks. The students will enjoy the transitions between the different activities whilst crucially being able to evaluate their understanding of this key topic in Chemistry. Deliberately, the lesson hasn’t been written for any particular exam board or exclusively for Combined Science or Chemistry, but instead it covers the topics which are shown below and this will allow teachers to pick and choose which parts they want to do in a particular lesson. Properties of the alkali metals (group I) Properties of the halogens (group VII) Properties of the noble gases (group 0) Formation of ionic compounds between group I and VII elements Reactivity of the alkali metals and the halogens Displacement reactions of the halogens The transition elements Organisation of the Periodic Table Predicting properties of the unknown or rare elements As the title suggests, the content of this lesson has been written to be GCSE standard and therefore is most suitable for use with 14 - 16 year olds. However, it could be used with younger students who are doing work on the topic and want to challenge themselves

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 REVISION resource has been designed to motivate and engage students whilst they are challenged on their knowledge of the content in topics C1-C5 of the AQA GCSE Chemistry specification which can be assessed on PAPER 1. This is fully-resourced and contains a detailed PowerPoint (208 slides) and accompanying worksheets, some of which have been differentiated. The resource was written with the aim of covering as many of the sub-topics in C1-C5 as possible, but the following ones have been given a particular focus: The chemical properties of the Group 1, 7 and 0 elements The structure of atoms and ions The properties of ionic compounds Drawing dot and cross diagrams to represent ionic compounds Extracting metals using carbon REDOX reactions Electrolysis of molten salts and solutions Neutralisation reactions Writing balanced chemical symbol equations Simple and giant covalent structures Diamond and graphite Calculating the relative formula mass Moles and Avogadro’s constant Calculating the mass in reactions Molar volume (Gas calculations) Concentration of solutions The organisation of the Periodic Table Due to the extensiveness of this resource, it is likely to be used over the course of a number of lessons with a particular class and this allows the teacher to focus in on any sub-topics which are identified as needing more time.

This REVISION resource has been written with the aim of motivating the students whilst they are challenged on their knowledge of the content in TOPIC 4 (Natural selection and modification) of the Edexcel GCSE Biology specification. The resource contains an engaging and detailed PowerPoint (82 slides) and accompanying worksheets, some of which are differentiated to provide extra scaffolding to students when it is required. The wide range of activities have been designed to cover as much of topic 4 as possible but the following sub-topics have been given a particular focus: The discovery of human fossils Stone tools as evidence of human evolution Evolution by natural selection The development of antibiotic resistance in bacteria The three domain and five kingdom classification methods Genetic engineering Selective breeding The benefits and risks of genetic engineering and selective breeding for the growing population The use of fertilisers and biological control There is a large emphasis on mathematical skills in the new specification and these are tested throughout the lesson. This resource is suitable for use at the end of topic 4, in the lead up to mocks or in the preparation for the final GCSE exams.

This revision resource includes exam questions, understanding checks and quiz competitions, all of which have been designed with the aim of motivating and engaging the students whilst they assess their understanding of the content found in topic 1.2 (Respiration and the respiratory system in humans) of the WJEC GCSE Biology specification. The range of activities have been designed to cover as much of the content as possible but the following sub-topics have been given particular attention: The need and purpose of the respiratory system The function of the mucus and cilia in the trachea and the effect of smoking on these structures The structure of the alveolus and its blood supply The mechanisms of inspiration and expiration The process of aerobic respiration and the release of energy in the form of ATP Anaerobic respiration and the production of lactic acid

This revision resource includes exam questions, understanding checks and quiz competitions, all of which have been designed with the aim of motivating and engaging the students whilst they assess their understanding of the content found in topic 3 (Movement in and out of cells) of the CIE IGCSE Biology specification for examination in June and November 2020 and 2021. This revision resource contains a detailed and engaging PowerPoint (42 slides) and associated worksheets, some of which have been differentiated to help and challenge differing abilities. The range of activities have been designed to cover as much of the Core and supplement content as possible but the following sub-topics have been given particular attention: Active transport as the movement of particles against their concentration gradient using energy from respiration The importance of active transport as demonstrated by the absorption of mineral ions by the root hair cells The movement of water across cell membranes by osmosis The importance of osmosis and water potential in the uptake of water by plants The effects on plant cells of immersion into solutions of different concentrations The importance of turgor pressure for a plant Diffusion as the net movement of particles with the concentration gradient Recognising the factors that influence the rate of diffusion In addition, topics from other modules such as specialised plant cells are covered so that students can see the importance of being able to make connections and links between Biological topics.

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 C2 (Experimental techniques) 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 “SEPARATE the FACT from the FICTION” 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: • Simple distillation and fractional distillation Choosing appropriate apparatus Experimental and investigational skills Crystallisation and filtration Paper chromatography Calculating the retention factor This resource contains an engaging PowerPoint (45 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 includes a range of activities that will act to engage and motivate the students whilst they assess their understanding of the Animal nutrition content (topic B6) of the CIE IGCSE Combined Science specification for examination in June and November 2020 and 2021. There are exam questions with explained answers as well as quick tasks and quiz competitions such as “Have you got the right BALANCE” where students are challenged to recognise whether a statement about the balanced diet is accurate or not. The lesson was designed to cover as much content as possible but the following topics have received particular attention: Mechanical digestion Chemical digestion by digestive enzymes Amylase and the break down of starch The adaptations of the small intestine to allow absorption The roles of the hydrochloric acid in gastric juice The break down of lipids in the small intestine The components of a balanced diet This resource includes a detailed and engaging PowerPoint (51 slides) and a worksheet which is differentiated two ways. Efforts have been made to make links to other topics such as enzymes (B4) so students can see the importance of being able to make connections in their answers

This revision resource contains a concise yet informative PowerPoint (25 slides) and a worksheet that will enable the students to assess their understanding of the topic B4 (Enzymes) content of the CIE IGCSE Combined Science specification for examination in June and November 2020 and 2021. The range of exam questions (with explained answers), quick tasks and quiz competitions have been designed to cover as much content as possible but the following topics have received particular attention: Enzymes as biological catalysts that speed up reactions The binding of a substrate with the active site of an enzyme The effect of a changing pH on the activity of an enzyme The effect of a changing temperature on the activity of an enzyme Denaturation

This engaging REVISION lesson has been designed to cover the content of topic 3 (Enzymes) of the CIE International A-level Biology specification. A wide range of activities have been written into the lesson to engage the students whilst they assess their understanding of the topic content. All of the exam questions contain detailed answers which students can use to identify missed marks and quiz competitions are used, like FROM NUMBERS 2 LETTERS (shown in the cover image) to recall key concepts and check on the finer details. The lesson has been planned to cover as much of the specification content as possible but the following sub-topics have received particular attention: Enzymes as globular proteins that act as biological catalysts Formation of the enzyme-substrate complex The lock and key theory and induced-fit hypothesis Competitive and non-competitive inhibitors The Michaelis-Menten constant The effect of changes in pH and temperature on the tertiary structure of the enzymes The immobilisation of enzymes using alginate Time has been taken in the design to ensure that links to other topics are made. For example, when checking the knowledge of the denaturation of enzymes due to pH and temperature, the bonds found in the tertiary structure are recalled and considered in depth.

This detailed and engaging REVISION LESSON has been written to cover the content of topic 4 (Cell membranes and transport) of the CIE International A-level Biology specification. The lesson consists of a PowerPoint that contains exam questions, differentiated tasks and quiz competitions and is accompanied by worksheets with further activities. The competitions act to engage the students whilst they assess their understanding of the content and challenges their ability to apply this knowledge to potentially unfamiliar situations. The lesson was designed to cover as much of the specification content as possible but the following sub-topics have received particular attention: Active transport and its applications in animals and plants Facilitated diffusion and the use of channel and carrier proteins The factors that affect diffusion as demonstrated by gas exchange at the alveoli Exocytosis Water potential and the movement of water by osmosis The effect of solutions of different water potentials on animal and plant tissue The fluid mosaic model The plasma cell membrane and the function of its components As well as covering the current topic, the design of this lesson has been conscious to include future topics. For example, a cholinergic synapse was used to challenge the students to spot examples of facilitated diffusion, simple diffusion, active transport and exocytosis. Revision lessons for the other 18 topics are uploaded on TES or are in the process of being uploaded.