1. Happy Halloween! Bellwork: October 31 Define the following words: Differentiation: _________________________ Stem: _________________________________ Cell: ___________________________________

2. Happy Halloween! Bellwork: October 31 Define the following words: Differentiation: The steps taken to make something different Stem: _________________________________ Cell: ___________________________________

3. Happy Halloween! Bellwork: October 31 Define the following words: Differentiation: The steps taken to make something different Stem: The root, origin, or start of something Cell: ___________________________________

4. Happy Halloween! Bellwork: October 31 Define the following words: Differentiation: The steps taken to make something different Stem: The root, origin, or start of something Cell: The smallest unit of life; prokaryotic or eukaryotic

5. Essential Question: What are stem cells? While you watch the following clip, write down 3 important facts that may help you answer this question

6. What are stem cells?

7. Questions for clip 1 1.What are stem cells? 2.Stem cells are ____________. (undifferentiated/differentiated) 3.Patients with leukemia have a type of _______ (cancer/viral infection) and doctors can use stem cells to help the body produce more red blood cells. 4.What are pluripotent stem cells?

8. Essential Question: How do stem cells work? While you watch the following clip, write down 3 important facts that may help you answer this question

9. How do stem cells work?

10. Questions for clip 2 1.How do stem cells work? 2.A stem cell has the potential to become _______________. 3.___________ signals cause stem cells to express certain genes and ___________ to become certain types of cells like skin, muscle, or bone. 4.Describe the stem cell heart experiment.

11. Essential Question: How are stem cells useful in medicine? While you watch the following clip, write down 3 important facts that may help you answer this question

12. A stem cell story

13. Questions for clip 3 1.Life begins with ______ cell and ________ to produce the billions of cells that make up the body. 2.What are some places in the body that use stem cells to replace worn out tissue? 3.How are stem cells useful in medicine? 4.Explain the controversy about using embryonic stem cells.

14. Essential Question: How can stem cells be used to make a human heart? While you watch the following clip, write down 3 important facts that may help you answer this question

15. The heart makers

16. Questions for clip 4 1.How can stem cells be used to make a human heart?