Science

Food webs, energy transfer and what happens when one part changes.

1. 1Food webs and energy transfer25 min
2. 2Energy transfer through food webs25 min
3. 3When one population changes25 min
4. 4Toxic build-up along a food chain25 min

Why living things differ, and how that changes over time.

1. 1Adaptation and natural selection25 min
2. 2Inherited and environmental variation25 min
3. 3Natural selection, step by step30 min
4. 4Heredity: how information travels between generations25 min

Balanced forces, speed and pressure in the real world.

1. 1Balanced and unbalanced forces25 min
2. 2Speed, distance and pressure25 min
3. 3Speed and distance-time graphs28 min
4. 4Pressure in fluids and on surfaces28 min

Planning, measuring and communicating investigations like a real scientist.

1. 1Making scientific predictions22 min
2. 2Planning a fair test28 min
3. 3Measuring accurately and judging reliability25 min
4. 4Presenting and communicating results22 min

Skeleton, breathing, digestion, diet and reproduction.

1. 1The skeletal and muscular systems26 min
2. 2Breathing and gas exchange26 min
3. 3Digestion and the gut28 min
4. 4Diet, health and deficiency24 min
5. 5Human reproduction28 min

How cells release energy and how plants capture it from sunlight.

1. 1Respiration: releasing energy26 min
2. 2Photosynthesis and stomata26 min
3. 3Inside a leaf: stomata and the gas trade25 min
4. 4Respiration: the reaction happening in you right now25 min

States of matter, changes of state, atoms, elements and compounds.

1. 1States of matter and the particle model24 min
2. 2Changes of state and conservation of mass24 min
3. 3Atoms, elements and compounds26 min
4. 4Gas pressure and the particle model25 min

Separating mixtures and understanding solutions and diffusion.

1. 1Separating mixtures26 min
2. 2Diffusion, solutions and solubility24 min
3. 3Chromatography: separating what looks identical25 min
4. 4Solubility, saturation and diffusion25 min

Word equations, acids and alkalis, and energy changes in reactions.

1. 1Chemical reactions and equations26 min
2. 2Acids, alkalis and the pH scale24 min
3. 3Energy changes and the reactivity series26 min
4. 4Exothermic, endothermic and the reactivity series25 min

Rocks, the rock cycle, the carbon cycle and climate change.

1. 1Earth structure and the rock cycle26 min
2. 2The carbon cycle and climate change26 min
3. 3The rock cycle in three journeys25 min
4. 4The carbon cycle and a warming atmosphere25 min

Energy transfers, resources, sound and light.

1. 1Comparing power and energy values26 min
2. 2Conservation of energy26 min
3. 3Fuels and energy resources24 min
4. 4Sound waves and hearing24 min
5. 5Light: reflection, refraction and colour26 min

Circuits, magnetism, gravity and our place in the Solar System.

1. 1Current, potential difference and circuits26 min
2. 2Magnetism and Earth's magnetic field24 min
3. 3Gravity, mass and weight24 min
4. 4Seasons, day length and the light year26 min

A five-chapter textbook study of genes, variation, adaptation, extinction and evidence.

1. 1Chapter 1: How characteristics are inherited30 min
2. 2Chapter 2: Variation within a species28 min
3. 3Chapter 3: Adaptation and competition32 min
4. 4Chapter 4: Environmental change and extinction30 min
5. 5Chapter 5: Investigation — does the evidence support the claim?35 min

Gas exchange, digestion and enzymes, human reproduction, photosynthesis and respiration as one connected story of energy in living things.

1. 1Breathing and gas exchange30 min
2. 2Digestion, enzymes and the gut30 min
3. 3Human reproduction and the menstrual cycle28 min
4. 4Photosynthesis and the leaf30 min
5. 5Aerobic and anaerobic respiration28 min

Atoms, elements and compounds, separating mixtures, diffusion and solutions, chemical equations, and acids, alkalis and the pH scale.

1. 1Atoms, elements and compounds28 min
2. 2Pure substances and separating mixtures30 min
3. 3Diffusion, solutions and solubility28 min
4. 4Chemical reactions and equations30 min
5. 5Acids, alkalis and neutralisation30 min

Energy transfers and conservation, comparing fuels and resources, pressure in fluids and on surfaces, and comparing light and sound waves.

1. 1Energy transfers, power and fuels30 min
2. 2Conservation of energy and calculations30 min
3. 3Fuels and energy resources28 min
4. 4Pressure on surfaces and in fluids28 min

Designing fair tests, taking reliable measurements, presenting results clearly and drawing conclusions the data can actually support.

1. 1Planning a fair test: variables and method28 min
2. 2Measurement, repeats and reliability28 min
3. 3Presenting data and drawing conclusions28 min
4. 4Measuring well: repeats, anomalies and reliability25 min
5. 5Turning results into tables and graphs that argue25 min

Cell structure and transport, enzymes and the digestive system, and the bioenergetics of photosynthesis and respiration.

1. 1Cells, microscopy and transport30 min
2. 2Enzymes, digestion and the circulatory system30 min
3. 3Photosynthesis, respiration and limiting factors30 min

Meiosis and genetic crosses, evidence for evolution, and interdependence and human impact in ecosystems.

1. 1Inheritance, variation and evolution30 min
2. 2Ecosystems, interdependence and human impact30 min

Atoms, isotopes and electronic structure, periodic trends, and how ionic, covalent and metallic bonding explain properties.

1. 1Atomic structure and the periodic table30 min
2. 2Bonding, structure and properties30 min

Relative formula mass and moles, conservation of mass in calculations, reactivity, acids and electrolysis.

1. 1Quantitative chemistry: masses, moles and yield30 min
2. 2Chemical changes: reactivity, acids and electrolysis30 min

Energy stores, transfers and efficiency, and current, potential difference, resistance and power in circuits.

1. 1Energy stores, transfers and efficiency30 min
2. 2Circuits, resistance and electrical power30 min

Newton's laws and motion graphs, stopping distances and momentum, and the properties and behaviour of waves.

1. 1Forces, motion and momentum30 min
2. 2Waves, the spectrum and their uses30 min

The five Year 9 ideas that GCSE builds straight on top of, taught with the reasoning and vocabulary you will need next year.

1. 1Heredity: passing information on30 min
2. 2Exothermic, endothermic and the reactivity series30 min
3. 3The carbon cycle and climate change30 min
4. 4Magnetic fields and electromagnets30 min
5. 5Seasons, day length and distances in space30 min

Cells, transport and bioenergetics done properly at KS3, so GCSE biology has something to stand on.

1. 1Diffusion, osmosis and why surfaces are folded30 min
2. 2Photosynthesis and respiration as an energy pair30 min

Atoms, equations and the reactivity series, written the way GCSE chemistry will expect you to use them.

1. 1Atoms, elements, compounds and formulae30 min
2. 2Balancing equations and the reactivity series30 min

Energy stores and transfers, and forces and motion, using the language GCSE physics uses.

1. 1Energy stores, transfers and efficiency30 min
2. 2Forces, resultants and motion graphs30 min