Free Year 7 Science practice — classify purity, particle models, phase-point evidence and air composition. No account needed.
Use the scientific meaning of purity, interpret particle and phase-point evidence, and recall approximate dry-air composition. Correct answers can trigger celebrations. Feedback and retry options depend on the game.
Learning objective: Distinguish pure substances from mixtures using bounded definitions, models and measurements, then explain air as a variable mixture.
Curriculum anchor: England KS3 Science: pure and impure substances; particle models; melting and boiling points; mixtures; and composition of the atmosphere.
This game is designed as short independent practice after an idea has been introduced. It does not replace direct teaching, mathematical or scientific discussion, or an adult checking whether the learner can explain the idea away from the screen.
Keep everyday label meanings separate from scientific purity and treat melting-point evidence as support rather than absolute proof. Take a break when you need one.
Does it need an account? No. The game runs in the browser and asks for no name, email address, school or location.
Is it timed? Timing varies by activity. Check the available modes and instructions before starting.
Can it be used on a phone? Controls vary by game. Use the on-screen buttons or read the instructions for keyboard and drag actions.
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