Spring Break Homework- 7^th Grade

Radiant energy from the Sun drives the process of photosynthesis.

1. Why does photosynthesis need light energy from the Sun to complete the process?

　

2. What happens when light (energy) from the Sun is used for the process of photosynthesis?

　

3. Why is photosynthesis necessary to sustain life on Earth?

　

4. Where does photosynthesis take place?

　

5. What is the formula for photosynthesis?

Energy flows through living systems and is passed from one trophic level to another. It is then returned to the environment through cycles.

1. How does energy transfer in living systems?

　

2. What happens to the energy in matter that is decaying or decomposing?

　

3. How is energy returned to the enviroment through biomass’?

　

4. Create an example of a food chain

　

　

　

　

　

　

　

　

5. Create an example of a trophic level pyramid.