1) In which state of matter do the particles have the most energy? a) Solid b) Liquid c) Gas 2) What is the name of the change when a liquid becomes a solid? a) melting b) boiling c) freezing 3) What eventually happens if energy is continually removed from a liquid? a) It boils b) It evaporates c) It freezes 4) Why do solids have a fixed shape? a) The particles are fixed in place b) The particles are closely packed c) The particles vibrate 5) Why can liquids not be compressed easily? a) The particles are in a random arrangement b) The particles are closely packed c) The particles are free to move over each other 6) What is sublimation? a) When a solid turns into a gas b) When a gas turns into a solid c) When a gas turns into a liquid 7) Which of the following will sublime at room temperature and pressure? a) Ice b) Graphite c) Solid Carbon Dioxide (Dry ice) 8) What eventually happens to a gas if its pressure is increased? a) It condenses b) It evaporates c) It melts 9) In which state of matter are the particles mostly touching but arranged in a random way? a) Solid b) Liquid c) Gas 10) What matter has no definite shape and volume? a) Solid b) Liquid c) Gas

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