Across
- 2. humans burn these for energy/electricity
- 5. another word for breathing
- 6. element found in all living things
- 7. what humans breathe in
- 9. process of transforming light energy into usable energy
- 11. what plants breathe in
- 12. when water falls to the ground from the sky
Down
- 1. another word for sugar
- 3. gets absorbed through plant roots
- 4. tiny pores on plant leaves
- 5. when the ground has too much water causing it to flow across the surface into rivers
- 8. when water in oceans gets heated and rises into the atmosphere
- 10. small frozen raindrops
- 12. organism that uses sunlight for energy