Unit 10 Review

1234567891011121314151617181920212223
Across
  1. 4. This renewable energy source comes from the burning of organic matter.
  2. 7. The final and most energy-rich form of coal; also the most commonly used
  3. 8. These types of nonrenewable energies come from the remains of dead organisms. (Two words)
  4. 11. This type of fossil fuel is formed by plankton that died in the ocean. It is in liquid form.
  5. 12. This form of energy cannot be replenished by natural means during our lifetime.
  6. 15. This is a collection of wind turbines that create electricity from the wind.
  7. 16. This form of farming works on growing crops with minimal harm to the environment.
  8. 18. This form of water energy comes from building a dam across a flowing river.
  9. 19. The most common form of biofuel.
  10. 20. These forms of energy are capable of being replenished naturally if they are not overused.
  11. 21. This type of energy comes from the heat within the Earth’s interior.
  12. 22. This type of water energy comes from the differences in high and low tides across coastlines.
  13. 23. This element is the fuel for nuclear energy
Down
  1. 1. This type of fossil fuel is formed by plants that died in swamps
  2. 2. Reduce, Reuse, Recycle
  3. 3. This form of nuclear reaction occurs when atoms are split by neutrons.
  4. 5. This can occur in areas such as a forest when animals and habitat are separated and no longer accessible.
  5. 6. This is the effect of all human activities on the environment (two words)
  6. 9. Biomass that is used in a liquid form.
  7. 10. This four-letter organization stands for the National Environmental Policy Act
  8. 13. This form of fossil fuel is formed by plankton that died in the ocean but is found in a gaseous form (two words)
  9. 14. This renewable energy comes from the sun.
  10. 17. This form of energy comes from the release of energy by atomic reactions.