1. The Universe!
Created by Educational Technology Network

2. POWERPOINT JEOPARDY
Blue
Red
Green
Purple
Orange 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50

3. A large celestial body that is composed of gas and dust and that emits light is a(n)?– 10 Points
star

4. A(n)_____________ consists of one star or more than one star and all objects in orbit around the central star– 20 Points
Solar system

5. A(n) ___________ is a large group of stars, gas, and dust bound together by gravity– 30 Points
Galaxy

6. A large, cold cloud of gas and dust in interstellar space is called a(n) _____________– 40 Points
Nebula

7. The distance that light can travel in one year, also known as a(n) ___________, is about 9.5 trillion km– 50 Points LY

8. While planets are smaller than stars, planets are generally larger than which of the following?
The stars they orbit around
The solar system
The galaxy they are contained within
The other bodies in a solar system
– 10 Points D

9. Where do stars form?
– 20 Points
Nebula

10. What causes a supernova?
– 30 Points
The collapse of the core of a high mass star

11. Which object is farthest away from Earth?
Barnard’s star 6LY
Andromeda Galaxy 2.5 million light years
Triangulum Galaxy 2.6 million LY
Planet Neptune 4.3 billion km
– 40 Points
Triangulum Galaxy

12. How do galaxies range in size?
From dwarf galaxies with approximately 1 million star to giant galaxies with more than 1 trillion stars
As large as the distance from Earth to the sun and back
From the smallest speck of dust to infinity
From as small as the Milky Way to as large as the Universe
– 50 Points A

13. How do astronomers measure the brightness of a star?
By describing how large it is
By explaining how old the star is
By measuring the amount of energy it emits
By using apparent magnitude, a measure of the brightness of stars as they appear to an observer on Earth
– 10 Points D

14. The color of the surface of a star can be used to determining temperature. Which color is the coolest star?
Blue
Red
Yellow-white
Yellow
– 20 Points B

15. Describe the shape and composition of the Milky Way Galaxy
– 30 Points
Spiral or pinwheel, stars, gas, dust held together by gravity

16. Summarize the process by which a low mass star becomes a giant
– 40 Points
Nuclear fusion ( H—He), in inner core then the outer shell, temperature increases and density increases, star gets larger

17. What are the characteristics of planets and stars and what is their relationship within solar systems, galaxies, and the universe?
– 50 Points
Terrestrial planets have rocky crusts and dense mantles and cores
Gas giants are gaseous and are larger and less dense
Planets are generally smaller than stars
Stars are large celestial bodies composed of gas and emits light and contain a lot of energy
Stars range from supergiants to dwarfs
Planets and stars make up the solar system with a central star and its family of orbiting planets, moons, and smaller objects
Solar systems are contained within galaxies, which together with voids, make up the universe
Galaxies are large groups of stars, gas and dust held together by their own gravity

18. Describe a star– 10 Points
A celestial body that is made of gas and emits light

19. What is the structure of the Universe?– 20 Points
Earth---planets---stars---solar system—galaxy—universe

20. A planet in our solar system is far away from the Sun, describe the size and composition of this planet– 30 Points
It is a gas giant so it is large with a thick gaseous atmosphere and a small rocky core

21. To measure a star’s ____________, astronomers use an absolute brightness scale called ___________ ___________
– 40 Points
Luminosity, absolute magnitude

22. Which color of star has a surface temperature above 25,000 degrees Celsius?
– 50 Points
Blue

23. Why is the absolute magnitude of some stars greater than their apparent magnitude?
– 10 Points
They can be located very far away

24. Name three constellations – 20 Points
Answers Vary

25. When does a low mass star become a Giant?– 30 Points
When the hydrogen in its core starts to run out

26. Name the steps in the life cycle of a low mass and a high mass star
– 40 Points
Low mass: Nebula---star---red giant---white dwarf
High Mass: Nebula---star---supergiant---supernovae---black hole or neutron star

27. Describe the stages of nuclear fusion in the sun
– 50 Points
Nuclear fusion in the core, H-He
H+H---He and energy