Across
- 3. to share information
- 4. two or more things bumping into each other
- 6. a description of how something works or why something happens
- 8. a pattern of motion that travels away from a source
- 11. to move back and forth quickly
- 12. to make a picture in your mind using information from different sources
- 13. the stuff that makes up everything
Down
- 1. the place where something comes from
- 2. a tiny piece of material that is too small to see
- 5. something scientists make to answer questions about the real world
- 6. the ability to make things move or change
- 7. to move something from one place to another
- 9. to try to learn more about something
- 10. something we observe to be similar over and over again