Energy

2. used up much faster than it can be replaced
6. energy that travels as waves through matter or through empty space
9. energy of moving objects (car moving)
11. energy from the sun
13. store electrical energy produced by solar cells
14. the energy of moving particles (hot cocoa has many)
16. energy of moving water
17. the ability to make things move or change
18. energy stored in the nucleus of an atom
19. solar cell can change light energy into electricity
20. an energy resource that formed over millions of years from decayed remains of plants and animals

1. can be replaced as it is or cannot be used up
3. energy of moving air( wind turbines)
4. careful use of resources
5. reflects and forces sunlight onto a fluid pipe, thermal energy is used to create steam, which turns the turbine wind energy
7. any material from living things that can be used as an energy source
8. energy stored in the bonds that hold atoms together
10. heat energy from inside the earth that can be used to heat buildings and produce electricity
12. a change form one form to another
15. energy of moving charges (lamps, toasters)