They change chemical energy into kinetic energy. They change solar energy into chemical energy. They change wind energy into heat energy. They change mechanical energy into solar energy.
I gave my students this multiple choice question: Giant redwood trees change energy from one form to another. How is energy changed by the trees?

Only one answer is correct among these 4 choices:
- They change chemical energy into kinetic energy.
- They change solar energy into chemical energy.
- They change wind energy into heat energy.
- They change mechanical energy into solar energy.

Could you tell me which one is correct?

They change solar energy into chemical energy.