1. Jeopardy – 18.1, 18.2
Universe
Galaxies
Milky Way
Stars
The Sun
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2. The explosive event that formed the universe and everything in it.
What is the Big Bang?

3. Evidence suggests that the universe is currently doing this
What is expanding?

4. Stretching of light waves towards one end of the spectrum as a result of objects moving away from us.
What is red shift?

5. The first atoms to be formed after the Big Bang.
What is hydrogen?

6. What is background radiation?
Leftover microwaves from the formation of the universe which support the theory that the universe is expanding.
What is background radiation?

7. Groups of stars held together by gravity
What are galaxies?

8. The galaxy of which we are a part.
What is the Milky Way?

9. What is elliptical or irregular?
Galaxies can be spiral in shape. They can also be either of these shapes.
What is elliptical or irregular?

10. Groups of galaxies held together by gravity.
What are clusters?

11. Unit of length used to measure distance between stars in a galaxy.
What is a light year?

12. The shape of the Milky Way galaxy.
What is spiral?

13. Our location within our galaxy.
What is the outer edge?

14. Elliptical galaxies often appear reddish due to an abundance of these.
What are older stars?

15. What is interstellar matter?
In addition to stars and planets the Milky Way contains dust and particles know as this.
What is interstellar matter?

16. A pattern of stars as seen from the earth.
What is a constellation?

17. Stars are held together by these forces.
What are gravitational forces?

18. Stars release energy in this form.
What is light?

19. What are nuclear fusion reactions?
These generate new elements and large amounts of energy in the core of stars.
What are nuclear fusion reactions?

20. Supergiant stars turn into these.
What are supernovas?

21. Factors that determine the apparent brightness of a star.
What are size, distance and temperature?

22. Our sun is this type of star in terms of size.
What is average?

23. In the core of the sun, hydrogen atoms combine to form these.
What are helium atoms?

24. The types of reactions that occur in the core of stars.
What are nuclear fusion reactions?

25. The reason the sun appears so large and bright in our sky.
What is its distance from Earth?

26. The reason the sun is yellow in color.
What is its average/medium temperature?

27. Daily Double