Across
- 1. Differing ____________ of solar energy that reach the Southern and Northern hemispheres throughout the year lead to the four seasons.
- 5. Coal, oil and gas store energy from the sun that was _________________ by plants millions of years ago.
- 7. The sun radiates heat in all _____________.
- 9. Animals and plants that are ________ can eventually form coal, oil or gas.
Down
- 2. The length of the day depends on the _____________.
- 3. The Earths axis is not __________.
- 4. Animals and plants all depend on this process for their ____________.
- 5. The Earth spins once per day on its __________.
- 6. The suns energy sustains __________ on Earth.
- 8. Plants absorb light from the _____________.