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

How the body gets oxygen in and gets food broken down small enough to use.

1. 1Breathing, gas exchange and what damages it30 min
2. 2Digestion, enzymes and gut bacteria30 min

The two reactions that keep everything alive, and how they fit together.

1. 1Photosynthesis: making food from light30 min
2. 2Aerobic and anaerobic respiration30 min

Food webs, pollinators and why no two individuals of a species are identical.

1. 1Food webs, pollinators and interdependence30 min
2. 2Variation within and between species30 min

What substances are made of, and how to pull a mixture apart.

1. 1Atoms, elements, compounds and formulae30 min
2. 2Pure substances and separating mixtures30 min

Atoms rearranging, equations that balance, and neutralisation.

1. 1Chemical reactions and balancing equations30 min
2. 2Acids, alkalis and neutralisation30 min

Energy moving from store to store, and where our electricity really comes from.

1. 1Energy transfers, power ratings and fuel values30 min
2. 2Fuels and energy resources30 min

Mass, weight and gravity, then reflection, refraction and colour.

1. 1Mass, weight and gravity30 min
2. 2Light: reflection, refraction and colour30 min

Planning a fair test and drawing a conclusion the data actually supports.

1. 1Planning a fair test30 min
2. 2Patterns, anomalies and honest conclusions30 min
3. 3Measuring well: repeats, anomalies and reliability25 min
4. 4Turning results into tables and graphs that argue25 min

How new humans begin, how a leaf breathes, and how particles spread out on their own.

1. 1Human reproduction and the menstrual cycle30 min
2. 2How a leaf breathes, and why everything depends on it30 min
3. 3Diffusion, solutions and solubility30 min

How organisms change the place they live in, how poisons build up a food chain, and what pushes a species to extinction.

1. 1How living things change their environment - and how poisons build up30 min
2. 2When the environment changes: adaptation, competition and extinction30 min

Counting energy before and after, squeezing fluids, comparing light with sound, and measuring current and voltage.

1. 1Energy you can count: calculating and conserving it30 min
2. 2Pressure on surfaces, in fluids and in the atmosphere30 min
3. 3Light waves and sound waves compared30 min
4. 4Current, voltage, series and parallel30 min

Choosing instruments, judging whether your method can be trusted, and turning numbers into a table and a graph.

1. 1Measuring accurately and judging whether to trust it30 min
2. 2Tables, graphs and saying it in scientific language30 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

Skeletons, diets and respiration, learned through the animals that do each job to an extreme.

1. 1Skeletons and muscles: cheetah, elephant, snow leopard30 min
2. 2Guts, enzymes and gut bacteria: carnivore, herbivore, omnivore30 min
3. 3Aerobic and anaerobic respiration: the sprint and the marathon30 min

Why no two animals are identical, how adaptation is tested by the environment, and how traits are passed on.

1. 1Species and variation: telling leopards apart30 min
2. 2Adaptation, competition and extinction30 min
3. 3Heredity: how traits pass to the next generation30 min

Food webs, human impact and how to plan a real animal investigation you could actually carry out.

1. 1Food webs and interdependence30 min
2. 2Human impact: pollution, plastics and accumulation30 min
3. 3Planning an animal behaviour investigation30 min

How leaves catch sunlight, how water travels up a tree, and why almost everything alive depends on plants.

1. 1How a leaf eats sunlight30 min
2. 2Water's climb: roots, xylem and stomata30 min
3. 3Flowers, bees and the pollination deal30 min

Reading tracks and signs, food webs in a British woodland, pollinators, and why no two animals are alike.

1. 1Reading the wild: tracks, signs and fieldcraft30 min
2. 2Food webs in a British woodland35 min
3. 3Night shift: owls, bats and moths30 min

What happens when habitats change, how poisons build up in food chains, and how species are brought back from the edge.

1. 1When habitats change30 min
2. 2Poisons up the food chain30 min
3. 3Back from the brink: conservation that works35 min