Across
- 3. the force of attraction or repulsion that exist between like or unlike poles
- 6. a liquid fossil fuel also known as crude oil
- 7. the ability to do work
- 9. gas a gaseous fossil fuel
- 11. a wak, long-range, attractive force that acts between objects
- 13. force the force created by a magnet
- 14. force a force that involves a physical connection with an object
- 15. a solid fossil fuel that formed from decayed plant material
Down
- 1. energy the energy obtained from moving air
- 2. point the temperature at which a substance changes from a liquid to a gas or vice versa
- 4. the distance an object travels per unit of time
- 5. a substance formed during a chemical reaction
- 7. force the force created by electric charges
- 8. a substance that takes part in a chemical reaction
- 10. a substance taht cannot be broken down into a simpler substance by ordinary chemical means
- 12. a region that contains similar ecosystems and is characterized by certain climatic conditions