Energy

2. A diagram showing energy transfers, where the width of each arrow is proportional to the amount of energy it represents.
7. The movement of particles in a fluid (gas or liquid)
9. Electricity generated by moving water
10. A material that does not allow something like heat to pass through it
13. A way of saying how much energy something wastes. A more efficient machine wastes less energy.
14. A name used to describe energy when it is stored in chemical substances.
15. Unit for measuring energy

1. A way of transferring energy by heating
3. A name used to describe energy when it is stored in moving things.
4. A name used to describe energy when it is stored in objects in high places that can fall down
5. The way energy is transferred through solids by heating
6. An energy resource that will run out
8. A fuel like coal used to generate electricity
11. An energy resource that will never run out
12. A fuel made from plants or animal waste