Energy

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Across
  1. 2. a pretend version of something that scientists use when the real thing is too big, small, expensive, or complicated to work with
  2. 3. how fast something is moving
  3. 5. a test used to discover new information about a question
  4. 7. energy that is due to gravity
  5. 9. energy that is not in use, but is saved inside something, such as batteries, gasoline, food, springs, or rubber bands
Down
  1. 1. energy that is in the form of sound that can be heard
  2. 4. when energy travels from one place to another
  3. 6. when one object hits or crashes into another object
  4. 8. repeated tests in an experiment