Class 9 · Chemistry · Hard level · 8 questions
States of Matter: Application
Solid, liquid, gas, one substance, three behaviours, explained entirely by how its particles move. In Class 9 Chemistry the topic covers the particle theory, the three states, changing state and diffusion and gas pressure. This quiz is the hardest level, with Class 9 exam-style questions that mix the ideas together. 8 questions (multiple choice), marked the moment you finish, with the reason for every answer.
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Your score is saved against States of Matter, so you can see which topics are solid and which need another go.