1) Metals are good conductors of heat? a) True b) False c) Don't know 2) Air is a good conductor of heat a) True b) False c) Don't know 3) Insulators often trap air a) True b) False c) Don't know 4) Particles vibrate more when they are heated a) True b) False c) Don't know 5) Heat is a form of energy a) True b) False c) Don't know 6) The particles in a metal expand when they are heated a) True b) False c) Don't know 7) Wool is an insulator a) True b) False c) Don't know

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