Across
- 4. using water and its currents as a source of energy
- 7. a panel that uses the sun as a source of energy
- 8. when you bike or walk more you __________
- 9. heat within the earth being used for energy
Down
- 1. a big turbine that uses wind as a source of energy
- 2. when you get a shopping bag that you can use multiple times that means you _____ it
- 3. meet the needs of the present without compromising future generations
- 5. not putting things like pop cans and plastic into the garbage
- 6. a way of conserving water mostly in the morning