Science
Across
- 1. The amount of matter in an object.
- 3. The ability to do work or cause change.
- 4. The force that pulls objects toward Earth.
- 7. The amount of space an object takes up.
- 10. Speed in a given direction.
- 12. The smallest unit of matter.
- 14. Transfer of heat through direct contact.
- 15. A combination of substances that can be physically separated.
Down
- 2. The rate of change of velocity.
- 5. A measure of how hot or cold something is.
- 6. A substance formed when two or more elements chemically combi
- 8. Mass per unit volume.
- 9. A push or pull on an object.
- 11. A force that resists motion between two surfaces.
- 13. A substance made of only one type of atom.