Across
- 3. any of the basic units of matter and energy
- 5. being neither solid nor gaseous. one of three phases of matter
- 6. to take in
- 9. Is made up of tiny particles that are always in motion
- 10. physical material from which something is made or which has a discrete existence
- 12. send out
- 14. There are three phases of matter. Solid, liquid and gas
- 15. is a vapor that we cannot see. It is one of the three phases of matter.
- 16. energy of movement
Down
- 1. Involve parts and processes that are too small to be seen with the eyes.
- 2. Is one of the three phases of matter. a state of matter that retains its shape and density when not confined.
- 4. observable by the naked eye
- 7. energy transfers from particle to particle when two objects touch eachother
- 8. the energy contained within a system that is responsible for its temperature
- 11. the average amount of kinetic energy
- 13. energy transfer through electromagnetic waves from the sun or from other sources