Start up Reflection

1. Start up Reflection What is something you have learned about the skeletal system? What is something you are still confused about? Any other information you want Mr. Wong to know?

2. Experiment • Expectations & Important Information: • Self-control • Should not be playing, but examining • Room might smell because of vinegar • If you want to touch bone, please wash hands after (Hands might smell even after washing) • Wash 1 at a time at the sink.

3. Experiment Before Bone After Bone Hard and could not bend

4. Experiment • Results: _________________________________ _________________________________ _________________________________

5. Experiment • Was my hypothesis correct? • Yes No • My original hypothesis: The bones will dissolve in vinegar

6. Experiment • Share why you think the bone was bendable with a partner at your table or a group of 3

7. Experiment • How It Works • Vinegar erodes the chemicals, such as calcium. • Calcium keeps bones dense and hard

8. Experiment • Importance • Human bones build up strength from foods rich in calcium and vitamin • As people age, bones without enough calcium lose their structure and density • Can lead to osteoporosis • Important sources of these nutrients include dairy products, broccoli, spinach, oranges, beans and salmon.

9. Experiment • What I learned: _________________________________ _________________________________ _________________________________ _________________________________

10. Experiment • What I leaned: I learned that bones contain calcium.

11. The Skeletal System WS • What is cartilage? • Name 3 places in the body where cartilage can be found

12. The Skeletal System WS 3. Describe two important jobs done by cartilage 4. What is another name for the backbone?

13. The Skeletal System Fill in the Blank pg. 14

16. Bone Story Cut lined parts Fold dotted lines -------------- Then color book