Energy

2. reflects and forces sunlight onto a fluid pipe, thermal energy is used to create steam, which turns the turbine wind energy
4. energy that travels as waves through matter or through empty space
5. solar cell can change light energy into electricity
7. heat energy from inside the earth that can be used to heat buildings and produce electricity
8. energy of moving charges (lamps, toasters)
10. a change form one form to another
11. can be replaced as it is or cannot be used up
14. the ability to make things move or change
15. energy of moving air( wind turbines)
16. energy from the sun
18. energy stored in the bonds that hold atoms together
19. energy stored in the nucleus of an atom
20. careful use of resources

1. an energy resource that formed over millions of years from decayed remains of plants and animals
3. energy of moving objects (car moving)
6. the energy of moving particles (hot cocoa has many)
9. used up much faster than it can be replaced
12. any material from living things that can be used as an energy source
13. store electrical energy produced by solar cells
17. energy of moving water