Energy Resources

3. since fossil fuels take hundreds of millions of years to form, they are considered ______ resources
7. compounds made from oil
9. energy-rich substances formed from the remains of plants and animals
10. the most plentiful fossil fuel in the U.S.
12. a factory in which crude oil is heated and separated into fuels and other products
14. magma heats underground water to create this form of energy
19. solar energy is energy from the ______
20. this electricity is produced by running water
21. most oil deposits are found underground in tiny holes located in limestone or ________
22. solar power plants use these to capture the sun's energy
23. a dam blocks water to create a ________ for hydroelectric power

1. this type of solar heating causes the inside of your car to heat up
2. another name for oil
3. energy is released from the splitting of atoms with this energy source
4. forms from the same organisms as oil
5. the percentage of energy that is actually used to perform work
6. a substance that provides energy, such as light, heat, motion, or electricity
8. the direct or indirect source of most other renewable energy resources
11. fuels made from living things
13. decomposing plant material becomes this before it becomes coal
15. wind farms consist of many wind __________
16. thick, black, liquid fossil fuel
17. a layer of material that traps air
18. chemical compounds containing carbon and hydrogen atoms. They make up fossil fuels