Matter & Energy Review

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Across
  1. 3. A material that allows heat or an electric current to flow through easily
  2. 6. Change in state of matter from a gas to a liquid
  3. 7. Change in state of matter from a liquid to a vapor or gas
  4. 8. A curved piece of clear plastic or glass that bends light rays
  5. 10. How hot or cold something is
  6. 12. A material through which heat or electricity does not easily flow
  7. 17. a conducting circle or loop through which current can flow
  8. 18. Matter breaks down into particles that are so small that it seems to disappear
  9. 19. What is needed to do work or cause change.
Down
  1. 1. Light rays bouncing off the surface of an
  2. 2. The amount of matter in something; measured in grams
  3. 4. light to form a virtual image
  4. 5. The amount of matter packed into a given space compared to its ability to sink or float in water
  5. 9. The bending of light rays as they pass from one substance to another.
  6. 11. A property of attraction for metals
  7. 13. Measurement of the ability of a solid to dissolve in a liquid
  8. 14. A liquid mixture in which one substance is mixed evenly throughout another substance
  9. 15. A very smooth surface able to clearly
  10. 16. The star at the center of our solar system that supplies heat and light energy to Earth; its enormous gravity keeps the solar system in orbit.