Across
- 1. The change from a liquid to a solid.
- 3. This is necessary when using electronics.
- 6. machine Two or more simple machines combined.
- 9. We fill our cars with this.
- 10. This happens when your ice cream cone is exposed to heat.
- 12. How fast someone or something goes.
- 13. You feel this when your outside on a hot summer day.
Down
- 2. We use this on the computer.
- 4. A rock is a___
- 5. number The sum of protons and neutrons in an atom
- 7. and axle A door knob is a type of a simple machine.
- 8. The ability to do work
- 10. You may put this on a refrigerator.
- 11. Water is a___
- 14. Some food products include citric___