science

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Across
  1. 4. light can travel through a ______
  2. 7. the cycle at which rocks change
  3. 8. rhymes with fraction
  4. 9. the type of energy that is infinite
  5. 10. radiant energy comes from this
  6. 11. this also keeps out electricity
  7. 12. how fast or slow something is
Down
  1. 1. again this keeps out electricity
  2. 2. this keep out electricity
  3. 3. the type of energy that's finite
  4. 5. this and number four are sound travels
  5. 6. anything that has mass and takes up space