Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.4.5 - Species and taxonomy. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.7.4 - Populations in ecosystems. Complete set of Chapter 7 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 5.12 - Understand how restriction enzymes are used to cut DNA at specific sites and ligase enzymes are used to join pieces of DNA together. Specification Point 5.13 - Understand how plasmids and viruses can act as vectors, which take up pieces of DNA, and then insert this recombinant DNA into other cells. Specification Point 5.14 - Understand how large amounts of human insulin can be manufactured from genetically modified bacteria that are grown in a fermenter. Specification Point 5.15 - Understand how genetically modified plants can be used to improve food production. Specification Point 5.16 - Understand that the term transgenic means the transfer of genetic material from one species to a different species. Complete set of Chapter 7 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.2.2 - The brain. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.7.3.6 - Maintaining biodiversity. Complete set of Chapter 7 Lectures are available.

Companion PDF worksheet for Edexcel IGCSE Biology Lecture 13 - Human Nutrition. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. 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 Worksheets are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.2 - Memory. Factors affecting the accuracy of eyewitness testimony: misleading information, including leading questions and post-event discussion; anxiety. Improving the accuracy of eyewitness testimony, including the use of the cognitive interview. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1 - Understand the causes of tropical cyclone hazards, including ocean temperature, atmospheric pressure, wind shear and Coriolis force. Specification Point 3.1 - Understand the causes of volcanic and earthquake hazards, including the role of plate boundaries and hotspots. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.1 - Approaches in psychology. The psychodynamic approach: the role of the unconscious, the structure of personality, that is Id, Ego and Superego, defence mechanisms including repression, denial and displacement, psychosexual stages. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.14 - Understand that the genome is the entire DNA of an organism and that a gene is a section of a molecule of DNA that codes for a specific protein. Specification Point 3.15 -Understand that the nucleus of a cell contains chromosomes on which genes are located. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.3 - Describe the structures of an insect-pollinated and a wind-pollinated flower and explain how each is adapted for pollination. Specification Point 3.4 - Understand that the growth of the pollen tube followed by fertilization leads to seed and fruit formation. Specification Point 3.5 - Practical: investigate the conditions needed for seed germination. Specification Point 3.6 - Understand how germinating seeds utilise food reserves until the seedling can carry out photosynthesis. Specification Point 3.7 - Understand that plants can reproduce asexually by natural methods (illustrated by runners) and by artificial methods (illustrated by cuttings). Complete set of Chapter 5 Lectures are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 14 - Waves. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 3.1 - Use the following units: degree (°), hertz (Hz), metre (m), metre/second (m/s) and second (s). Specification Point 3.2 - Explain the difference between longitudinal and transverse waves. Specification Point 3.3 - Know the definitions of amplitude, wavefront, frequency, wavelength and period of a waves. Specification Point 3.4 - Know that waves transfer energy and information without transferring matter. Specification Point 3.5 - Know and use the relationship between the speed, frequency and wavelength of a wave. Specification Point 3.6 - Use the relationship between frequency and time period. Complete set of Chapter 3 Worksheets are available.

Companion PDF worksheet for Edexcel IGCSE Physics Lecture 31 - The Universe. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 8.2 - Know that the universe is a large collection of billions of galaxies, that a galaxy is a large collection of billions of stars and that our solar system is in the Milky Way galaxy. Specification Point 8.3 - Understand why gravitational field strength, g, varies and know that it is different on other planets and the Moon from that on the Earth. Specification Point 8.4 - Explain that gravitational force causes moons to orbit planets, causes the planets to orbit the Sun, causes artificial satellites to orbit the Earth and causes comets to orbit the Sun. Specification Point 8.5 - Describe the differences in the orbits of comets, moons and planets. Specification Point 8.6 - Use the relationship between orbital speed, orbital radius and time period. Complete set of Chapter 8 Worksheets are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.2.5 - Health issues. Specification Point 4.2.2.6 - The effect of lifestyle on some non-communicable diseases. Specification Point 4.2.2.7 - Cancer. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.1.4 - Psychopathology. The biological approach to explaining and treating OCD: genetic and neural explanations; drug therapy. Complete set of Chapter 4 Lectures are available.

Complete set of concise, modern presentations for Edexcel IGCSE Geography (4GE1) Chapter 2 - Coastal Environments. Contains colour coded specification points with custom vector graphics. Ten presentations included: 11 - Coastal Processes 12 - Coastal Landforms 13 - Factors Affecting Coastal Environments 14 - Coastal Ecosystems 15 - Coral Ecosystems 16 - Threats to Coastal Ecosystems 17 - Coastal Conflicts 18 - Coastal Flooding 19 - Coastal Management 20 - Coastal Management Case Studies

Complete set of concise, modern presentations for Edexcel IGCSE Geography (4GE1) Chapter 9 - Globalisation and Migration. Contains colour coded specification points with custom vector graphics. Six presentations included: 54 - The Globalised World 55 - Migration 56 - Impacts of Globalisation and Migration 57 - Impacts of Global Tourism 58 - Trade, Migration and Tourism 59 - Migration and Tourism Case Studies

Complete set of concise, modern presentations for Edexcel IGCSE Geography (4GE1) Chapter 5 - Economic Activity and Energy. Contains colour coded specification points with custom vector graphics. Seven presentations included: 29 - Economic Sectors and Employment 30 - Location of Economic Sectors 31 - Changes in Economic Sectors 32 - Informal Employment 33 - Populations and Resources 34 - Energy 35 - Energy Management

Complete set of concise, modern presentations for AQA A Level Psychology (7181 and 7182) Chapter 8 - Issues and Debates. Contains colour coded specification points. Six presentations included: 42 - Bias 43 - Free Will and Determinism 44 - Holism and Reductionism 45 - The Nature-Nurture Debate 46 - Idiographic and Nomothetic Approaches 47 - Socially Sensitive Research

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.3.2 - Relationships. Theories of romantic relationships: social exchange theory, equity theory and Rusbult’s investment model of commitment, satisfaction, comparison with alternatives and investment. Duck’s phase model of relationship breakdown: intra-psychic, dyadic, social and grave dressing phases. Complete set of Chapter 9 Lectures are available.