Across
- 4. a colorless, odorless, and tasteless liquid living things need to survive
- 6. the process where plants use sunlight, water and carbon dioxide to produce sugar and release oxygen
Down
- 1. a type of living thing that gets its energy from the Sun and is unable to move from place to place on its own
- 2. a mixture of gases that are all around us
- 3. what plants and animals use for energy; plants create their own using energy from the sun, while animals must eat
- 5. what is needed to do work or cause change
- 7. the star at the center of the solar system that supplies heat and light to earth