The nervous system, nervous reactions, types of nerve cell, conscious and reflex reactions, synapses, homeostasis, fertility, balanced diet, poor diets, metabolic rates, heart disease, cholesterol, smoking, pros and cons of different drugs, tobacco and lung cancer, the work of Richard Doll, thalidom ...more

The nervous system, nervous reactions, types of nerve cell, conscious and reflex reactions, synapses, homeostasis, fertility, balanced diet, poor diets, metabolic rates, heart disease, cholesterol, smoking, pros and cons of different drugs, tobacco and lung cancer, the work of Richard Doll, thalidomide, microbes and pathogens, vaccinations, MRSA, fighting disease, antibiotics, painkillers, mutations....hide

Adaptation, competition, predators and prey, variation, genes, sexual and asexual reproduction, cloning plants and animals, selective breeding, genetic modification, evolution and its evidence, different theories on evolution, natural selection, population and pollution, biological pollution indicat ...more

Adaptation, competition, predators and prey, variation, genes, sexual and asexual reproduction, cloning plants and animals, selective breeding, genetic modification, evolution and its evidence, different theories on evolution, natural selection, population and pollution, biological pollution indicators, deforestation, the Greenhouse Effect, sustainable development....hide

Plant and animal cells, diffusion, osmosis, photosynthesis and what it needs, uses for glucose, leaf structure, nutrients and why they are needed, pyramids of biomass, energy flow in a food chain, improving the efficiency of a food chain, Sankey diagrams for warm and cold blooded animals, the carbon ...more

Plant and animal cells, diffusion, osmosis, photosynthesis and what it needs, uses for glucose, leaf structure, nutrients and why they are needed, pyramids of biomass, energy flow in a food chain, improving the efficiency of a food chain, Sankey diagrams for warm and cold blooded animals, the carbon cycle, enzymes, respiration, uses for enzymes in the body and in industry, homeostasis, controlling body temperature, controlling blood sugar levels, diabetes, the work of Mendel, mitosis and meiosis, genes, chromosomes, DNA, genetic cross diagrams, inherited diseases, sexual reproduction, stem cells....hide

Active transport, diffusion in the lungs and villi, the respiratory system, lung adaptation, diffusion and active transport in plants, stomata, the structure of a leaf, transpiration, water loss, the double circulatory system, arteries, veins and capillaries, the different parts of blood, aerobic re ...more

Active transport, diffusion in the lungs and villi, the respiratory system, lung adaptation, diffusion and active transport in plants, stomata, the structure of a leaf, transpiration, water loss, the double circulatory system, arteries, veins and capillaries, the different parts of blood, aerobic respiration, the effect of exercise of heart and breathing rates, anaerobic respiration, kidneys, dialysis machines, kidney transplants, using micro organisms to make food, the work of Louis Pasteur, fermenters, penicillin, biofuels and biogas, growing micro organisms....hide

Limestone and its uses, the structure of the atom, the Periodic Table, elements and their symbols, conservation of mass in reactions, extraction of metals, alloys, ores, different strengths of steel, atom arrangement in alloys, other alloys, smart alloys, transition metals, copper, aluminium and tit ...more

Limestone and its uses, the structure of the atom, the Periodic Table, elements and their symbols, conservation of mass in reactions, extraction of metals, alloys, ores, different strengths of steel, atom arrangement in alloys, other alloys, smart alloys, transition metals, copper, aluminium and titanium, hydrocarbons and crude oil, fractional distillation, alkanes....hide

Crude oil and its uses, ethanol and its uses, cracking, alkenes, polymers, disposal of plastics,vegetable oils, extracting oil, saturated and unsaturated fats, E numbers, emulsions, chromatography, the structure of the Earth, crust movements, plate boundaries, continental drift, tectonic theory and ...more

Crude oil and its uses, ethanol and its uses, cracking, alkenes, polymers, disposal of plastics,vegetable oils, extracting oil, saturated and unsaturated fats, E numbers, emulsions, chromatography, the structure of the Earth, crust movements, plate boundaries, continental drift, tectonic theory and its evidence, evolution of the atmosphere, the noble gases, carbon dioxide in the atmosphere....hide

The structure of the atom, mass number, atomic number, isotopes, electron structure, the Periodic Table, balancing equations, covalent and ionic bonding, dot and cross diagrams, giant structures, nanoscience, the alkali metals, the noble gases, the halogens, atomic mass, percentage mass, calculating ...more

The structure of the atom, mass number, atomic number, isotopes, electron structure, the Periodic Table, balancing equations, covalent and ionic bonding, dot and cross diagrams, giant structures, nanoscience, the alkali metals, the noble gases, the halogens, atomic mass, percentage mass, calculating the mass of a product, atom economy, endothermic and exothermic reactions, reversible reactions, Haber process, rates of reaction, catalysts, rates of reaction graphs, electrolysis, purifying copper, the electrolysis of brine, making salts....hide

The structure of the atom, electron configuration, the periodic table and its development, the alkali metals, the halogens, the transition metals, displacement reactions of the halogens, reactivity in groups 1 and 7, acids and bases, titration and its calculations, Arrhenius, Bronsted and Lowry, the ...more

The structure of the atom, electron configuration, the periodic table and its development, the alkali metals, the halogens, the transition metals, displacement reactions of the halogens, reactivity in groups 1 and 7, acids and bases, titration and its calculations, Arrhenius, Bronsted and Lowry, the water cycle, purifying water, solubility, hard and soft water, removing hardness, energy in food, endothermic and exothermic reactions, energy level diagrams, bond energies, activation energy and the effect of catalysts, calculating energy from fuels, flame tests, testing for carbonates, thermal decomposition reactions, testing for metal and halide ions, testing for saturated fats, empirical formulae....hide

Heat transfer, conduction, convection and radiation, types of energy, energy changes, conservation of energy, efficiency, energy transfer diagrams, energy and power, the cost of electricity, the National Grid, how transformers work, renewable and non-renewable fuels, pollution, power stations, how r ...more

Heat transfer, conduction, convection and radiation, types of energy, energy changes, conservation of energy, efficiency, energy transfer diagrams, energy and power, the cost of electricity, the National Grid, how transformers work, renewable and non-renewable fuels, pollution, power stations, how renewable sources work, advantages and disadvantages of different sources of energy....hide

The Electromagnetic Spectrum, transmitting information, the Wave Equation, analogue vs. digital signals, the structure of the atom, isotopes, types of radiation, ionisation, blocking radiation, deflection by electric fields, uses and dangers of radioactivity, radioactive decay, half life, red shift ...more

The Electromagnetic Spectrum, transmitting information, the Wave Equation, analogue vs. digital signals, the structure of the atom, isotopes, types of radiation, ionisation, blocking radiation, deflection by electric fields, uses and dangers of radioactivity, radioactive decay, half life, red shift and the origins of the universe....hide

Distance, speed and time, motion graphs, balanced forces, f=ma, terminal velocity, w=mg, stopping distance, work done, elastic potential energy, kinetic energy, conservation of momentum, static electricity, Van de Graaf generators, smoke precipitators, circuit symbols, electric circuits, current, vo ...more

Distance, speed and time, motion graphs, balanced forces, f=ma, terminal velocity, w=mg, stopping distance, work done, elastic potential energy, kinetic energy, conservation of momentum, static electricity, Van de Graaf generators, smoke precipitators, circuit symbols, electric circuits, current, voltage and resistance, current-voltage graphs, thermistors and LDRs, wiring a plug, DC and AC, using an oscilloscope, charge, power, the structure of an atom, isotopes, the Rutherford Scattering experiment, types of radiation, background radiation, nuclear fusion and nuclear fission....hide

Centre of mass, stability, turning moments, centripetal force, orbits, gravity on different bodies and at different distances, orbit times, artificial satellites, reflection, ray diagrams for mirrors, ray diagrams for lenses, real and virtual images, using an oscilloscope, varying frequency and ampl ...more

Centre of mass, stability, turning moments, centripetal force, orbits, gravity on different bodies and at different distances, orbit times, artificial satellites, reflection, ray diagrams for mirrors, ray diagrams for lenses, real and virtual images, using an oscilloscope, varying frequency and amplitude, ultrasound, uses of ultrasound, how ultrasound works, the motor effect, electromagnetic induction, AC generators, transformers and the transformer equation, the life cycle of a star, black holes, second generation stars....hide