3 LESSONS
Science from the foundations
Understand experiments, solve motion and energy problems, and explain how ecosystems work.
Follow this series →QUESTIONS INTO UNDERSTANDING
Free science guides: understand, test and explain
Build a foundation in scientific thinking, motion, energy and ecosystems. Use worked explanations, safe exercises and free public educational resources.
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Science & evidence
Scientific thinking: experiments, measurements and evidence
Why does a fair test matter? Learn how variables, repeated measurements and alternative explanations turn a sensible guess into a conclusion you can defend.
Learning outcome: You will turn a broad curiosity into a testable question, plan a fair comparison, and distinguish a result from the explanation offered for it.
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Motion, force and energy: explanations and solved examples
Follow a walk, a trolley and a lifted schoolbag to understand distance, velocity, force, work and energy.
Learning outcome: Calculate distance, displacement, speed, net force and simple work; explain balanced forces and energy transfers.
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Ecosystems: food webs, energy flow and nutrient cycles
A pond or garden works through connections between organisms, water, air and soil.
Learning outcome: Explain a food web, distinguish energy flow from nutrient cycling and predict possible effects of a habitat change.
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Learn through explanations, worked examples and questions with answers. Sources support the lessons and offer a route into deeper study.
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