Alternative Fuel Cars
Across
- 3. in the form of a gas
- 5. a connection between atoms that are joined together to form a molecule
- 6. the smalled units of an element
- 7. fuels that are different from those most commonly used today
- 9. devices that produce electricity by combining a fuel with oxygen
- 10. a chemical element in the periodic table
- 11. devices that convert light into electricity
- 12. fuel made from crops such as corn and sugar cane
Down
- 1. brightly shining
- 2. dirt or debris in the air or on the ground
- 4. a supply of something that can be replaced; a source of energy that is not depleted by use
- 5. living, or recently living, plant or animal material
- 8. the process by which a substance is broken down into a simpler form, such as in the creation of chees and vinegar