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