1. The Structure and Formation of Stars START EXIT Funded by Title V HIS Grant at LAMC and U.S Department of Education Corresponds to Ch 7 in book Astro by Seeds Prepared by: Julissa Garcia, Aramik Yousefian Hagop Hadjinian, Tatevik Grigoryan Activity director: Lilit Haroyan Faculty Advisor: Richard Rains

2. 1. In convection… HINT Air is circulating Resistance to the flow of radiation Resistance to the flow of radiation Hot air rises and cold air falls Hot air rises and cold air falls Cold air rises and hot air falls Cold air rises and hot air falls 12345687910Exit

3. HINT Air is circulating Resistance to the flow of radiation Hot air rises and cold air falls Cold air rises and hot air falls Correct! next 1. In convection… 12345687910Exit

4. Incorrect It’s Hot air falling, cold air falling. back next 1. In convection… HINT 12345687910Exit

5. It relates to heat… back 12345687910Exit

6. 2. Dust and Gas make up… HINT The interstellar medium A teenager’s room The Sun’s core The Earth 12345687910Exit

7. HINT The interstellar medium A teenager’s room The Sun’s core The Earth Correct! next 2. Dust and Gas make up… 12345687910Exit

8. 2. Dust and Gas make up… Incorrect It’s in between objects in a galaxy, all over the universe. back next HINT 12345687910Exit

9. In between celestial objects… back 12345687910Exit

10. 3. This image is an example of HINT Convection Radiation The solar system Conduction 12345687910Exit

11. HINT Convection Radiation The solar system Conduction Correct! next 3. This image is an example of 12345687910Exit

12. back next 3. This image is an example of Incorrect Ultraviolet rays are a form of radiation the sun expels. nextback HINT 12345687910Exit

13. UV Rays… back 12345687910Exit

14. 4. The breaking of atoms nuclei through reaction is called… HINT Nuclear fission Nuclear fusion Osmosis Jones Gravitational force 12345687910Exit

15. HINT Nuclear fission Nuclear fusion Osmosis Jones Gravitational force Correct! next 4. The breaking of atoms nuclei through reaction is called… 12345687910Exit

16. 4. The breaking of atoms nuclei through reaction is called… Incorrect In Nuclear fission atoms are broken apart and energy is expelled. back next HINT 12345687910Exit

17. We use this in power plants… back 12345687910Exit

18. 5. According to Hydrostatic Equilibrium the layers of a star are… HINT Thick Pushing into each other Total masses equal the sum of all the masses Total masses equal the sum of all the masses Balanced with weight and pressure Balanced with weight and pressure 12345687910Exit

19. HINT Thick Pushing into each other Total masses equal the sum of all the masses Balanced with weight and pressure 5. According to Hydrostatic Equilibrium the layers of a star are… Correct! next 12345687910Exit

20. 5. According to Hydrostatic Equilibrium the layers of a star are… Incorrect Pressure from the lower layer and weight from the upper layer help keep the balance of a star back next HINT 12345687910Exit

21. Equilibrium means balance back 12345687910Exit

22. 6. Where do Neutrinos come from? HINT The core of a galaxy The exterior of Saturn’s rings The exterior of Saturn’s rings Dwarfs The core of our Sun 12345687910Exit

23. HINT The core of a galaxy The exterior of Saturn’s rings Dwarfs The core of our Sun Correct! next 6. Where do Neutrinos come from? 12345687910Exit

24. Incorrect Neutrinos are those unseeable things that are “missing” detection. back next 6. Where do Neutrinos come from? HINT 12345687910Exit

25. back Comes from same place you get your light… 12345687910Exit

26. 7. A Protostar is a… HINT A gas nebula of stars A cluster of collapsing star A cluster of collapsing star A means of becoming a Hollywood star A means of becoming a Hollywood star A cloud of dust and gas destined to be a star A cloud of dust and gas destined to be a star 12345687910Exit

27. HINT A gas nebula of stars A cluster of collapsing star A means of becoming a Hollywood star A cloud of dust and gas destined to be a star Correct! next 7. A Protostar is a… 12345687910Exit

28. 7. A Protostar is a… Incorrect A protostar is destined to be a star back next HINT 12345687910Exit

29. “Proto” mean first in Greek back 12345687910Exit

30. 8. Interstellar Reddening occurs when… HINT Stars explode A hot star excites nearby gas A hot star excites nearby gas Dust scatters blue light A dense cloud of gas and dust block stars A dense cloud of gas and dust block stars 12345687910Exit

31. HINT A hot star excites nearby gas Dust scatters blue light A dense cloud of gas and dust block stars Stars explode Correct! next 8. Interstellar Reddening occurs when… 12345687910Exit

32. 8. Interstellar Reddening occurs when… Incorrect In between stars there is dust and that dust scatters the blue light and in effect makes everything appear red. back next HINT 12345687910Exit

33. There is no blue light… back 12345687910Exit

34. HINT Stars explode A hot star excites nearby gas Dust scatters blue light A dense cloud of gas and dust block stars A dense cloud of gas and dust block stars 9. Emission Nebula occurs when… 12345687910Exit

35. HINT Stars explode A hot star excites nearby gas Dust scatters blue light A dense cloud of gas and dust block stars Correct! next 9. Emission Nebula occurs when… 12345687910Exit

36. 9. Emission Nebula occurs when… Incorrect A hot star excites nearby gas and emits photons back next HINT 12345687910Exit

37. Heat makes atoms excited and emit photons back 12345687910Exit

38. 10. Dark Nebula occurs when… HINT Stars explode A hot star excites nearby gas Dust scatters blue light A dense cloud of gas and dust block stars A dense cloud of gas and dust block stars 12345687910Exit

39. HINT Stars explode A hot star excites nearby gas Dust scatters blue light A dense cloud of gas and dust block stars Correct! next 10. Dark Nebula occurs when… 12345687910Exit

40. 10. Dark Nebula occurs when… Incorrect A Dark Nebula is a dense cloud of gas and dust blocking stars. back next HINT 12345687910Exit

41. “Dark” implies something is being obscured… back 12345687910Exit

42. EXIT TRY AGAIN TRY AGAIN TRY AGAIN TRY AGAIN