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- 1. Open EndedWhat is the temperature of the Sun's core? What is the temperature at the surface of the Sun?
- 2. Open EndedWhat is the Sun composed of? What is the most abundant element? Why are there only small amounts of elements heavier than helium?
- 3. Open EndedWhat is the photosphere? What is the purpose of the photosphere? How does density change as you move towards the core? How does temperature change as you move towards the core?
- 4. Open EndedWhat are the 3 zones in the sun? How do they differ? How is energy moved in each area? What causes light to slow down? How long does it take light to reach the surface of the Sun?
- 5. Open EndedWhat is granulation? Why do they appear the way they do?
- 6. Open EndedWhat is the chromosphere? What is the temperature of the chromosphere? When is it seen and what does it look like? What are spicules?
- 7. Open EndedWhat is the corona? What is the temperature of the corona? What are coronal holes? When do you see the corona?
- 8. Open EndedWhat is hydrostatic equilibrium? What is the pressure in the core? What powers the core?
- 9. Open EndedWhat is nuclear fusion? What kinds of temperatures do you need for fusion? Describe the basic process of fusion.
- 10. Open EndedWhat are solar neutrinos? Why are they hard to detect? What
- 11. Open EndedWhat are sunspots? How long do they last? What are their temperatures? How are sunspots used to measure the rotation of the Sun? Why are sunspots cooler? What causes sunspots?
- 12. Open EndedWhat are prominences? Why do they occur? What is a solar flare?
- 13. Open EndedWhat is the solar wind?
- 14. Open EndedWhat is the solar cycle? How does the rotation of the Sun vary? What is a cause of the solar cycle? Why do spots come in pairs? How long is the sunspot cycle? What are some causes on the Earth of the sunspot cycle?
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