Across
- 4. Protects your insides and keeps germs out.
- 6. Group of organs and tissues that work together.
- 8. Evaporates to keep you cool.
- 9. System that helps you move your body.
- 11. Tissue that is dead and traps air to keep you warm.
- 13. Keeps the cell separate from its environment.
- 15. wall Sturdy structure that helps the cell keep its shape.
- 16. Liquid substance inside of the cell.
- 17. A tool used to make things look bigger than they are.
- 18. Absorbs sunlight to make food.
Down
- 1. The control center of the cell.
- 2. System that tells your body what to do.
- 3. System that helps breakdown food.
- 5. Made of different tissues that work together.
- 7. Cells of the same type that work together.
- 10. Makes energy for the cell.
- 12. The building block of life.
- 13. Wavy, hair-like structures that sweep dust away.
- 14. System that supports your body.