1. How many bones are in the human body?

2. True or False: About 70% of your bones are living tissue.

3. What hard mineral is the main element in our bones?

4. What is in the center of our bones?

5. Yellow bone marrow mostly consists of what type of cells?

6. True or False: When we are born, all of our bones have red marrow.

7. Which of the following is an example of a ball and socket joint?

8. What is the purpose of cartilage?

9. What tough tissue grows over a broken bone during the healing process?

10. What should you drink to make your bones stronger?