1. Ask your partner, “What color are you wearing for the pep assembly?”
Please Grab:
-HW Sheet
-Rubric (on back table)
-Formation of Elements W.S (last night’s homework)

2. Warm up
Write the reaction for the following processes:
The Alpha Decay of Uranium-235
𝑈 → 2 4 𝐻𝑒 𝑇ℎ
The Beta Decay of Carbon-14
6 14 𝐶 → −1 0 𝑒 − 𝑁
The Fusion of Oxygen-16
6 12 𝐶 𝐻𝑒 → 𝑂
Multiple correct answers, as long as masses add up to 16, and atomic numbers equal 8

3. HW review- With your lab group!
Team Captain is the person with the longest pinky finger!
1. Within your group determine who is your “team captain”
2. Team captain, lead the group through the answer key.
3. Determine any questions that you have after reviewing the key
4. Ms. Jarvis will come back together and answer questions as a whole class
5. Log on your HW sheet and make a plan if not feeling 

4. Wow…that just happed this week
Wow…that just happed this week! Two neutrons stars collided and let off gravitational waves and gamma rays!

5. Star Project: Create a 3-D Model that describes low mass, high mass and super high mass star
Due: Blue 10/24
Gold 10/25
Make sure to review the grading rubric!
This will count as a test grade.

6. Why should we care about this?

7. Recipe For a
Star

8. Recipe for a Star Activity
Step1: How does a proton + electron form a neutron
Step 2: How does Hydrogen fuse to form 1 Helium atom?
Step 3: How does Helium fuse to form 1 Carbon Atom?
Step 4: Draw the 4 Stages in the Life Cycle of a Low Mass Star and show which of each of the previous Nuclear Rxns were involved at each stage.
Using the BSCS Book pgs223 – 237:
Divide Poster into 4 Rows: Make Row 1 Half the Size of the other 3
For Each Step =
1. Build+ Label a Playdoh Model of that step
2. Draw + Label the Nuclear Reaction Equations involved in that step

9. Recipe for a Star Activity
Step1: How does a proton + electron form a neutron
Step 2: How does Hydrogen fuse to form 1 Helium atom?
Step 3: How does Helium fuse to form 1 Carbon Atom?
Step 4: Draw the 4 Stages in the Life Cycle of a Low Mass Star and show which of each of the previous Nuclear Rxns were involved at each stage.
Using the BSCS Book pgs223 – 237:
Divide Poster into 4 Rows: Make Row 1 Half the Size of the other 3
For Each Step =
1. Build+ Label a Playdoh Model of that step
2. Draw + Label the Nuclear Reaction Equations involved in that step

11. Proton and Electron combine to make a Neutron.
H Fusion
Proton and Electron combine to make a Neutron.

12. H Fusion
4 11H  42He + Energy

13. Recipe for a Star Activity
Step1: How does a proton + electron form a neutron
Step 2: How does Hydrogen fuse to form 1 Helium atom?
Step 3: How does Helium fuse to form 1 Carbon Atom?
Step 4: Draw the 4 Stages in the Life Cycle of a Low Mass Star and show which of each of the previous Nuclear Rxns were involved at each stage.
Using the BSCS Book pgs223 – 237:
Divide Poster into 4 Rows: Make Row 1 Half the Size of the other 3
For Each Step =
1. Build+ Label a Playdoh Model of that step
2. Draw + Label the Nuclear Reaction Equations involved in that step

14. He Fusion  Carbon

15. Carbon

16. Recipe for a Star Activity
Step1: How does a proton + electron form a neutron
Step 2: How does Hydrogen fuse to form 1 Helium atom?
Step 3: How does Helium fuse to form 1 Carbon Atom?
Step 4: Draw the 4 Stages in the Life Cycle of a Low Mass Star and show which of each of the previous Nuclear Rxns were involved at each stage.
Using the BSCS Book pgs223 – 237:
Divide Poster into 4 Rows: Make Row 1 Half the Size of the other 3
For Each Step =
1. Build+ Label a Playdoh Model of that step
2. Draw + Label the Nuclear Reaction Equations involved in that step

17. Low Density
Shell
High
Density
Highest
Density

19. Low Mass Star
Excited Hydrogen
H Fusion in core
4 H  He

20. Red Giant: 4 Layered Core
Non-fusing H Shell
Excited H
H fusing
He fusing C
Core
Core

22. Nucleosynthesis Wkst

23. High Mass Star's Core Excited H H Fusion He Fusion C Fusion O Fusion
Ne Fusion
Mg Fusion
Si Fusion Fe
High Mass Star's
Core

24. Making Iron ?
Silicon Fusion
Si + Si  Ni
Then Nickel Decays
Ni  Fe

26. Stellar Life Cycles

27. Yellow star Main Sequence Blue star Main Sequence Supergiant Red Giant
Protostar
Planetary Nebula
Nebula
Supernova
Nova
White Dwarf
Neutron star/Pulsar
Black
Dwarf 28 28

28. Hwk
1. Nucleosynthesis Wkst
2. Nuclear Rxns Test Next Class