Matter and Conductors/Insulators

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Across
  1. 4. The temperature at which a solid begins to melt.
  2. 5. A metal spoon feels hot because it is a good thermal __________.
  3. 6. The change from gas to liquid when air cools down.
  4. 10. When liquid water changes into vapor (gas).
  5. 12. A material that does not let heat pass easily.
  6. 13. A material that does not allow electricity to pass easily.
  7. 16. Good thermal conductor.
  8. 19. Glass, rubber, and plastic are electrical __________.
Down
  1. 1. A material that lets electricity pass easily.
  2. 2. A plastic ruler does not conduct heat well, so it is a .
  3. 3. The state of matter that keeps its own shape.
  4. 7. When a liquid turns into a solid because it becomes cold.
  5. 8. Something that has mass and takes up space.
  6. 9. The amount of matter in an object.
  7. 11. When a solid changes into a liquid because of heat.
  8. 14. Copper wire is a good electrical __________.
  9. 15. Air, water, and milk are examples of a __________ state of matter.
  10. 17. The state of matter that spreads and fills its container.
  11. 18. Ice melts into water because of **.**