Powerpoint lecture covering the following in a modern, concise format: Specification Point 1.14 - Know what is meant by the terms atom and molecule. Specification Point 1.15 - Know the structure of an atom in terms of the positions, relative masses and relative charges of subatomic particles. Specification Point 1.16 - Know what is meant by the terms atomic number, mass number, isotopes and relative atomic mass (Ar). Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.34 - Know the general rules for predicting the solubility of ionic compounds in water. Specification Point 2.35 - Understand acids and bases in terms of proton transfer. Specification Point 2.36 - Understand that an acid is a proton donor and a base is a proton acceptor. Specification Point 2.37 - Describe the reactions of hydrochloric acid, sulfuric acid and nitric acid with metals, bases and metal carbonates to form salts. Specification Point 2.38 - Know that metal oxides, metal hydroxides and ammonia can act as bases, and that alkalis are bases that are soluble in water. Specification Point 2.39 - Describe an experiment to prepare a pure, dry sample of a soluble salt, starting from an insoluble reactant. Specification Point 2.42 - Practical: prepare a sample of pure, dry hydrated copper (II) sulphate crystals starting from copper (II) oxide. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.5C - Draw and explain energy level diagrams to represent exothermic and endothermic reactions. Specification Point 3.6C - Know that bond-breaking is an endothermic process and that bond-making is an exothermic process. Specification Point 3.7C - Use bond energies to calculate the enthalpy change during a chemical reaction. Complete set of Chapter 6 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.9 - Describe experiments to investigate the effects of changes in surface area of a solid, concentration of a solution, temperature and the use of a catalyst on the rate of a reaction. Specification Point 3.10 - Describe the effects of changes in surface area of a solid, concentration of a solution, pressure of a gas, temperature and the use of a catalyst on the rate of a reaction. Specification Point 3.11 - Explain the effects of changes in surface area of a solid, concentration of a solution, pressure of a gas and temperature on the rate of a reaction in terms of particle collision theory. Specification Point 3.12 - Know that a catalyst is a substance that increases the rate of a reaction, but is chemically unchanged at the end of the reaction. Specification Point 3.13 - Know that a catalyst works by providing an alternative pathway with lower activation energy. Specification Point 3.15 - Practical: investigate the effect of changing the surface area of marble chips and of changing the concentration of hydrochloric acid on the rate of reaction between marble chips and dilute hydrochloric acid. Specification Point 3.16 - Practical: investigate the effect of different solids on the catalytic decomposition of hydrogen peroxide solution. Complete set of Chapter 6 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 2.5 - Know the colours, physical states (at room temperature) and trends in physical properties of chlorine, bromine and iodine. Specification Point 2.6 - Use knowledge of trends in group 7 to predict the properties of other halogens. Specification Point 2.7 - Understand how displacement reactions involving halogens and halides provide evidence for the trend in reactivity in group 7. Specification Point 2.8C - Explain the trend in reactivity in group 7 in terms of electronic configurations. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.4.1.2 - Rate of photosynthesis. Complete set of Chapter 4 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.4.2.1 - Aerobic and anaerobic respiration. Specification Point 4.4.2.2 - Response to exercise. Specification Point 4.4.2.3 - Metabolism. Complete set of Chapter 4 Lectures are available.

Complete set of concise, modern presentations for AQA GCSE Biology (8461) Chapter 4 - Bioenergetics. Contains colour coded specification points with handmade vector graphics. Three presentations included: 19 - Photosynthesis 20 - The Rate of Photosynthesis 21 - Respiration

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.3.1 - The human endocrine system. Specification Point 4.5.3.2 - Control of blood glucose concentration. Complete set of Chapter 5 Lectures are available.

Complete set of concise, modern presentations for AQA GCSE Biology (8461) Chapter 5 - Homeostasis and Response. Contains colour coded specification points with handmade vector graphics. Eight presentations included: 22 - The Nervous System 23 - The Brain 24 - The Eye 25 - Homeostasis and Thermoregulation 26 - The Endocrine System 27 - The Kidneys 28 - Puberty and the Menstrual Cycle 29 - Plant Hormones

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.4.1 - Control and coordination regarding plant hormones. Required Practical 8 - Investigating the effect of light on the growth of newly germinated seedlings. Specification Point 4.5.4.2 - Use of plant hormones. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.2.1 - Structure and function of the human nervous system. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.3.3.1 - Detection and identification of plant diseases. Specification Point 4.3.3.2 - Plant defence responses. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.5.2.3 - The eye. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.7.3.1 - Biodiversity. Specification Point 4.7.3.2 - Waste management. Complete set of Chapter 7 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.7.2.2 - How materials are cycled. Specification Point 4.7.2.4 - Impact of environmental change. Complete set of Chapter 7 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.7.1.1 - Communities. Specification Point 4.7.1.2 - Abiotic factors. Specification Point 4.7.1.3 - Biotic factors. Complete set of Chapter 7 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.7.3.4 - Deforestation. Specification Point 4.7.3.5 - Global Warming. Complete set of Chapter 7 Lectures are available.