Free Year 8 Science practice — order the spectrum and compare ultraviolet, X-ray and gamma uses. No account needed.
Order the electromagnetic spectrum and compare selected ultraviolet, X-ray and gamma uses, ionisation and controls. The default practice mode is untimed, so the learner can think before choosing. Correct answers build a gentle celebration; mistakes receive corrective feedback and return later rather than causing a penalty spiral.
Learning objective: Link frequency, wavelength and photon energy to uses and bounded biological risk.
Curriculum anchor: England KS3 Science: energy transfer by waves; electromagnetic spectrum; uses and effects of radiation.
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 where the wave lies in the spectrum, whether it is ionising and what control makes the use appropriate. Stop while attention is still good. A short accurate return tomorrow is more useful than extending a tired session today.
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? Practice is untimed. Where a sprint exists it is optional. Times Tables Sprint also includes MTC-style independent practice, not an expected-standard judgement.
Can it be used on a phone? Yes. Buttons support touch and keyboard use; sorting always has a tap alternative to dragging.
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