Jeopardy Final Jeopardy ??Mystery?? Stellar Evolution HR Diagram Solar Activity Nuclear Fusion $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 Final Jeopardy

1 - $100 This is the visible surface of the sun Photosphere

1 - $200 List stars from hottest to coolest Blue, White, Yellow, Orange, Red

1 - $300 Solar winds interact with Earth to create what? Auroras

1 - $400 What does a white dwarf become when fusion stops and it no longer shines? Black dwarf

1 - $500 Which stars live longer… low mass or high mass? WHY? Low mass because they use their fuel more slowly.

2 - $100 Before a star is formed it is just the gas and dust of a Nebula

2 - $200 A star is born when what begins Fusion

2 - $300 When the outward force of fusion is greater than the inward force of gravity what forms? Giant

2 - $400 An explosion that marks the end of a high mass star’s life Supernova

2 - $500 This is the force that causes a nebula to contract Gravity

3 - $100 Two characteristics that an HR diagram relates Temperature and Brightness

3 - $200 Where are the white dwarfs located Bottom left

3 - $300 This is the area on the HR diagram where stars spend most of their lives Main Sequence

3 - $400 Where are the giants located Top Right

3 - $500 Characterize Giants Extremely bright with low temperatures

4 - $100 This is a dark area of the photosphere that is cooler than the surrounding areas Sunspot

4 - $200 This is a loop or arch or gas that extends from the photosphere Prominence

4 - $300 This is an explosive release of energy from the sun Solar flare

4 - $400 How long is the sunspot cycle? 10-11 years

4 - $500 Where on Earth do we usually see auroras? Near the north and south poles

5 - $100 This is where fusion occurs in stars Core

5 - $200 This is the product of nuclear fusion in stars Helium

5 - $300 Fusion begins when these 2 particles collide 2 protons

5 - $400 The helium atom made during fusion has ________ protons 2

5 - $500 The amount of hydrogen in a star increases/decreases as fusion continues Decreases

Final Jeopardy Explain why the Earth has seasons. Because the Earth is tilted on its axis: In the summer, the Earth is tilted TOWARD the sun, making the sun rays more direct and the temperature warmer. In the winter, the Earth is tilted AWAY from the sun, causing the rays to be less direct and the temperature colder.