RISE Science Grade 6 Practice Questions - RISE Science - Grade 6 Exam

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Three identical containers hold water in solid (ice), liquid, and gas (steam) phases. How do the motion and arrangement of water molecules compare across these three states?

Gas particles are fixed in rigid rows; liquid particles float freely; solid particles move fastest. Solid particles vibrate in fixed positions; liquid particles slide past one another; gas particles move rapidly and independently. Solid particles move fastest; gas particles are held tightly by strong bonds; liquid particles do not move. All three states have identical particle speeds, but gas particles are smaller than solid particles.

Correct Answer:

Solid particles vibrate in fixed positions; liquid particles slide past one another; gas particles move rapidly and independently.

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