Across
- 5. A push or pull on an object.
- 6. Transfer of heat through direct contact.
- 9. Anything that has mass and takes up space.
- 11. – The movement of rocks or soil by wind, water, or ice.
- 14. A force that pulls objects toward each other.
- 17. The smallest unit of an element that still has the properties of that element.
- 19. Transfer of heat by movement of a fluid (liquid or gas).
- 20. A factor that can change in an experiment.
Down
- 1. The explanation or summary based on the results of an experiment.
- 2. The breaking down of rocks into smaller pieces.
- 3. A force that resists motion between two surfaces that are touching.
- 4. Small pieces of rock or material moved by wind or water.
- 7. How much mass is in a given volume of a substance.
- 8. Information collected from observations or experiments.
- 10. The ability to do work or cause change.
- 12. Molten rock beneath the Earth's surface.
- 13. The theory that Earth’s surface is made of large moving plates.
- 15. A testable prediction or educated guess.
- 16. Transfer of energy through space by waves.
- 18. A part of the experiment that stays the same for comparison.