Free Year 9 Science practice — atomic structure, formulae and mass conservation. No account needed.
Apply atomic structure, formula notation, compound naming and relative-formula-mass reasoning. Correct answers can trigger celebrations. Feedback and retry options depend on the game.
Learning objective: Use atomic and mass numbers, formula conventions and relative masses precisely while keeping system boundaries explicit.
Curriculum anchor: England KS3 Science: atomic structure, elements and compounds, chemical formulae and conservation of mass.
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.
Ask the learner to distinguish proton number, mass number, subscript and coefficient before calculating. 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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