Across
- 3. electrical energy generated by the movement of water
- 4. chemical potential energy obtained from renewable organic materials
- 7. stored energy that can be used later
- 10. an energy resource that is easily replaced by natural methods
- 12. a fuel that has formed from the remains of plants and animals that lived in the past, including coal, petroleum (oil), and natural gas
- 14. mechanical energy in rising and falling tides
Down
- 1. an energy resource that is not replaced naturally
- 2. energy from the wind can be used to turn turbine blades that are attached to generators
- 5. energy produced by the sun
- 6. the sum of the kinetic energy and all the forms of potential energy in a system
- 8. energy that an object possesses due to its motion
- 9. thermal energy that originates deep within the earth’s interior
- 11. energy produced by nuclear reactions
- 13. the ability to do work