Across
- 5. When atoms are close together
- 6. The amount of energy needed to change a material from a solid to the liquid state
- 7. Has the most energy
- 9. liquid to a gas
- 10. Any object that has mass and takes up space.
Down
- 1. This means that when matter is heated up it expands.
- 2. This theory states that all matter is made up of atoms that are in constant motion.
- 3. The amount of energy needed to change a material from the liquid state to the gas state
- 4. Doesn't have a definite shape but has a definite volume
- 8. 99% of the universe