Across
- 3. What makes 60-70 percent human body weight?
- 4. What is the human body's biggest organ?
- 5. Which organ is responsible for regulating the blood sugar level?
- 9. These body parts get smaller when you exhale air
- 10. This is your body's master chemical that controls characteristics, eye color, etc.
- 13. Joint at the top of the arm
- 14. When does a person show rapid eye movement (REM)?
- 15. What is the name of the substance that gives skin and hair its pigment?
Down
- 1. You use these when you walk.
- 2. What system in the human body helps blood circulation
- 6. The two holes in your nose are called ___.
- 7. Your muscles are _______ your skin
- 8. Joint between the leg and foot
- 11. What protects your brain?
- 12. Which organ makes urine?
- 14. This is the hardest part of your body.