Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.24 - Understand that a balanced diet should include appropriate proportions of carbohydrate, protein, lipid, vitamins, minerals, water and dietary fibre. Specification Point 2.25 - Identify the sources and describe the functions of carbohydrate, protein, lipid (fats and oils), vitamins A, C and D, the mineral ions calcium and iron, water and dietary fibre as components of the diet. Specification Point 2.26 - Understand how energy requirements vary with activity levels, age and pregnancy. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.4.7 - Investigating diversity. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.8.3 - Using genome projects. Specification Point 3.8.4.1 - Recombinant DNA technology. Complete set of Chapter 8 Lectures are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 16 - Reflection and Refraction. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 3.14 - Know that light waves are transverse waves and that they can be reflected and refracted. Specification Point 3.15 - Use the law of reflection. Specification Point 3.16 - Draw ray diagrams to illustrate reflection and refraction. Specification Point 3.17 - Practical: investigate the refraction of light, using rectangular blocks, semi-circular blocks and triangular prisms. Specification Point 3.18 - Know and use the relationship between refractive index, angle of incidence and angle of refraction. Specification Point 3.19 - Practical: investigate the refractive index of glass, using a glass block. Specification Point 3.20 - Describe the role of total internal reflection in transmitting information along optical fibres and in prisms. Specification Point 3.21 - Explain the meaning of critical angle c. Specification Point 3.22 - Know and use the relationship between critical angle and refractive index. Specification Point 3.23 - Know that sound waves are longitudinal waves which can be reflected and refracted. Complete set of Chapter 3 Worksheets are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 19 - Thermal Energy. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 4.6 - Describe how thermal energy transfer may take place by conduction, convection and radiation. Specification Point 4.7 - Explain the role of convection in everyday phenomena. Specification Point 4.8 - Explain how emission and absorption of radiation are related to surface and temperature. Specification Point 4.9 - Practical: investigate thermal energy transfer by conduction, convection and radiation. Specification Point 4.10 - Explain ways of reducing unwanted energy transfer, such as insulation. Complete set of Chapter 4 Worksheets are available.

A useful resource for students to practice their knowledge and examination technique for future external assessments. This is for the following paper: 4CH1 - 1C This mock is based on our 2023 Predicted Papers. These questions are completely original and have been designed from scratch. There has been no reuse of previous exam questions. Our mock paper follows the format of the true Edexcel IGCSE Chemistry 1C paper closely. It is also the exact duration and mark-count, with questions of increasing difficulty. A mark scheme is also attached. The paper covers the following specification points: • Topic 1b - Elements, compounds and mixtures (1.8 - 1.10) • Topic 1e - Chemical formulae, equations and calculations (1.25 - 1.32) • Topic 1f - Ionic bonding (1.37 – 1.41) • Topic 2a - Group 1 (2.1 – 2.3) • Topic 2d - Reactivity series (2.15 – 2.20) • Topic 2h - Chemical tests (2.44 – 2.50) • Topic 3a - Energetics (3.1 - 3.4) • Topic 4b - Crude oil (4.7 – 4.12) • Topic 4c - Alkanes (4.19 – 4.22) Disclaimer: This document was created by department heads with many years of experience teaching the Pearson Edexcel IGCSE Chemistry course. We cannot however guarantee that it is an accurate representation of upcoming examinations and students should not treat it as such. Please use this as an aid, alongside other methods of revision.

Companion PDF worksheet for Edexcel IGCSE Chemistry Lecture 26 - Energetics. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 3.1 - Know that chemical reactions in which heat energy is given out are described as exothermic, and those in which heat energy is taken in are described as endothermic. Specification Point 3.2 - Describe simple calorimetry experiments for reactions such as combustion, displacement, dissolving and neutralisation. Specification Point 3.3 - Calculate the heat energy change from a measured temperature change using the expression Q = mcΔT. Specification Point 3.4 - Calculate the molar enthalpy change (ΔH) from the heat energy change, Q. Specification Point 3.8 - Practical: investigate temperature changes accompanying some of the following types of change: salts dissolving in water, neutralisation reactions, displacement reactions and combustion reactions. Complete set of Chapter 6 Worksheets are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.3.2 - Gas exchange. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.3.3 - Digestion and absorption. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 4.11B - Describe the stages in the nitrogen cycle, including the roles of nitrogen fixing bacteria, decomposers, nitrifying bacteria and denitrifying bacteria. Complete set of Chapter 6 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.30P - Know and use the relationship between the moment of a force and its perpendicular distance from the pivot. Specification Point 1.31P - Know that the weight of a body acts through its centre of gravity. Specification Point 1.32P - Use the principle of moments for a simple system of parallel forces acting in one plane. Specification Point 1.33P - Understand how the upward forces on a light beam, supported at its ends, vary with the position of a heavy object placed on the beam. Complete set of Chapter 1 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 23 - Changes of State. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 5.8P - Explain why heating a system will change the energy stored within the system and raise its temperature or produce changes of state. Specification Point 5.9P - Describe the changes that occur when a solid melts to form a liquid, and when a liquid evaporates or boils to form a gas. Specification Point 5.10P - Describe the arrangement and motion of particles in solids, liquids and gases. Specification Point 5.11P - Practical: obtain a temperature–time graph to show the constant temperature during a change of state. Specification Point 5.12P - Know that specific heat capacity is the energy required to change the temperature of an object by one degree celsius per kg of mass. Specification Point 5.13P - Use an equation to derive the change in thermal energy in a system. Specification Point 5.14P - Practical: investigate the specific heat capacity of materials including water and some solids. Complete set of Chapter 5 Worksheets are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 22 - Density and Pressure. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 5.3 - Know and use the relationship between density, mass and volume. Specification Point 5.4 - Practical: investigate density using direct measurements of mass and volume. Specification Point 5.5 - Know and use the relationship between pressure, force and area. Specification Point 5.6 - Understand how the pressure at a point in a gas or liquid at rest acts equally in all directions. Specification Point 5.7 - Know and use the relationship for pressure difference. Complete set of Chapter 5 Worksheets are available.

Back by popular demand for a third year! Our heads of department have once again been hard at work to create a series of predicted exams for Summer 2024! These questions are completely original and have been designed from scratch. There has been no reuse of previous exam questions. This is for the following paper: AQA A Level Psychology Paper 2 (7182/2) - Psychology in Context Our predicted paper follows the format of the true AQA A Level Psychology Paper 2 closely. It is also the exact duration and mark-count. A detailed mark scheme is also attached. The paper covers the following specification points: • 4.2.1 - Approaches in Psychology • 4.2.2 - Biopsychology • 4.2.3 - Research Methods Disclaimer: This document was created by department heads with many years of experience teaching the AQA A Level Psychology course. We cannot however guarantee that it is an accurate representation of the 2024 examinations and students should not treat it as such. Please use this as an aid, alongside other methods of revision.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.8.2.2 - Regulation of transcription and translation. Complete set of Chapter 8 Lectures are available.

Complete set of concise, modern presentations for Edexcel IGCSE Physics (4PH1) Chapter 3 - Waves. Contains colour coded specification points. Four presentations included: 14 - Waves 15 - Electromagnetic Waves 16 - Reflection and Refraction 17 - Sound Waves

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.9 - Know the approximate percentages by volume of the four most abundant gases in dry air. Specification Point 2.10 - Understand how to determine the percentage by volume of oxygen in air using experiments involving the reactions of metals and non-metals with air. Specification Point 2.11 - Describe the combustion of elements in oxygen, including magnesium, hydrogen and sulphur. Specification Point 2.12 - Describe the formation of carbon dioxide from the thermal decomposition of metal carbonates, including copper (II) carbonate. Specification Point 2.13 - Know that carbon dioxide is a greenhouse gas and that increasing amounts in the atmosphere may contribute to climate change. Specification Point 2.14 - Practical: determine the approximate percentage by volume of oxygen in air using a metal or a non-metal. Complete set of Chapter 4 Lessons are available.

Complete set of concise, modern presentations for AQA A Level Biology (7401 and 7402) Chapter 7 - Genetics, Populations, Evolution and Ecosystems. Contains colour coded specification points. Five presentations included: 57 - Mutations and Cancer 58 - Stem Cells 59 - Gene Expression 60 - Gene Technologies 61 - Gene Therapy and Genetic Fingerprinting