Across
- 5. energy that is created by splitting an atom
- 8. a push or a pull that can change the state of motion in an object
- 11. energy locked up in the bonds between atoms and molecules
- 13. something that cannot be replaced
- 14. energy released from heat inside the earth
- 15. energy that is stored
Down
- 1. energy made by burning human or animal waste
- 2. something that can be replaced
- 3. the ability of a system to do work
- 4. energy in motion
- 6. a chemical or nuclear reaction in which the reaction keeps itself going
- 7. the splitting of atomic nuclei
- 9. energy from the sun
- 10. heat energy caused by the movement of atoms and molecules in matter
- 12. organic fuels made over millions of years that come from the remains of prehistoric animals and plants