Across
- 3. The energy of an object when the object is in motion.
- 6. The amount of matter or substance that makes up an object.
- 8. The smallest possible unit of matter.
- 10. Heat energy transferred by invisible rays. Think of the sun!
- 11. Heat energy transfer by heat rising and cool sinking in a liquid or gas state of matter.
- 12. Liquid turns into a gas.
Down
- 1. Anything that can change or be changed in an experiment.
- 2. Anything that has weight and takes up space.
- 4. Water vapor turns to liquid.
- 5. The particles of this state of matter rarely touch each other. They expand to fill the container they are in.
- 7. The particles of this state of matter flow past each other and take the shape of the container.
- 9. Transfer of heat energy by direct contact.