Do you know what's inside the lungs? How much do you know about hair? Try these activities and test your knowledge about how the body works!
- Bones & Skeletal System Activity
- Brain & Nervous System Activity
- Digestive System Activity
- Ears Activity
- Endocrine System Activity
- Eyes Activity
- Hair Activity
- Heart & Circulatory System Activity
- Immune System Activity
- Lungs & Respiratory System Activity
- Muscular System Activity
- Nails Activity
- Nose Activity
- Skin Activity
- Teeth Activity
- Tongue Activity
- Urinary System Activity
Medically reviewed by: KidsHealth Medical Experts