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Across
- 1. Small pieces of rock and soil carried by water and wind
- 3. The smallest piece of matter that makes up everything
- 6. A push or pull that can change how something moves
- 7. A test done to discover something new
- 8. A natural solid substance found in the earth
Down
- 2. All the chemical processes in your body that keep you alive
- 4. A pattern of energy moving through space or matter
- 5. The remains of a plant or animal from long ago preserved in rock