Across
- 3. What you end up with after a reaction.
- 6. The starting ingredients in a science reaction.
- 7. A clear liquid that plants and animals need to live.
- 8. The green parts of plant cells where food is made.
Down
- 1. How cells get energy from food.
- 2. Two or more atoms joined together.
- 3. The way plants make food using sunlight.
- 4. Tiny early life forms that made oxygen, also called blue-green algae.
- 5. A gas we breathe out that plants use.