Energyyyy

12345678910
Across
  1. 2. the most abundant element in the universe
  2. 3. turn in the wind to create energy
  3. 5. bacteria decompose waste and create this
  4. 6. plant material, manure, organic matter
  5. 9. energy sources still in development
  6. 10. what kind of solar heating uses the suns energy to heat something directly
Down
  1. 1. what is another name for solar cells
  2. 4. energy created from sources that are constantly being formed
  3. 7. energy from heat in the earths crust
  4. 8. hydroelectircity is produced by what energy source