1) Sound moves quicker through the air than water. True or false.  a) True b) False 2) What is a medium? a) A form of matter e.g. solid, liquid or a gas. b) A region that contains no medium.(like space) c) How clear sound is. 3) What is a vacuum? a) How clear sound is. b) A sound wave. c) A region that contains no medium. (like space) 4) Which medium does sound travel best through? a) Solid b) Liquid c) Gas 5) True or false, sound is a type of energy. a) True b) False 6) True or false. Sound travels faster than light. a) True b) False 7) Why does sound travel best through a solid? a) the particles which make up solids are close together. b) the particles which make up solids are far apart.

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