Across
- 3. What is the study of all living things?
- 4. What is the basic framework of the body?
- 7. What is the control center of your body?
- 8. The heart pumps blood through blood vessels called _________
- 9. What sphere of the Earth carries all the liquid water on Earth?
- 10. All living things are made of _______
- 14. What system breaks down the food you eat?
- 16. Where could you find chlorophyll?
- 17. What is a force that opposes motion between two surfaces?
Down
- 1. A marble at the top of a ramp has _______ energy.
- 2. What sphere is a body of air surrounding our planet?
- 5. What carries messages from inside or outside the body?
- 6. What system controls all of the body's movements?
- 11. What is the main structure of the respiratory system?
- 12. Any change in an object or person's position is _______?
- 13. What describes the condition of the air outside?
- 15. What organ helps circulate the blood around your body?