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- 1. Multiple Choice
Everything revolves around ___________.
stars
planets
moons
galaxies
- 2. Multiple Choice
Stars are made of mostly which two gases?
Hydrogen and Helium
Hydrogen and Oxygen
Hydrogen and Nitrogen
Hydrogen and Carbon
- 3. Multiple Choice
A star is born in a cloud of gas and dust called a __________.
nebula
galaxy
asteroid
black hole
- 4. Multiple Choice
Stars give off heat and light in a process called ___________.
nuclear fusion
supernova
luminosity
spectroscopy
- 5. Multiple Choice
In the process of nuclear fusion, hydrogen atoms combine to form ___________ atoms.
helium
carbon
nitrogen
oxygen
- 6. Multiple Choice
Billions of stars are held together in groups called __________.
galaxies
solar systems
planets
comets
- 7. Multiple Choice
Our Sun is part of which galaxy?
Milky Way
Andromeda
Sombrero
Whirlpool
- 8. Multiple Choice
The luminosity of a star describes its ______________.
brightness
temperature
age
color
- 9. Multiple Choice
As the _________ of a star increases, luminosity increases.
size
distance
age
composition
- 10. Multiple Choice
What color are the coolest stars?
red
blue
white
orange
- 11. Multiple Choice
What color are the hottest stars?
blue
red
white
yellow
- 12. Multiple Choice
The types of gases that make up a star is also known as the star's _______________.
composition
temperature
size
luminosity
- 13. Multiple Choice
Stars that are much bigger than the Sun are called _______________.
red supergiants
white dwarfs
main sequence
nebulae
- 14. Multiple Choice
Stars that are much smaller than the Sun are called _________________.
white dwarfs
red supergiants
main sequence
nebulae
- 15. Multiple Choice
A tool that astronomers use to learn about the composition of a star is called a _______________.
spectroscope
luminosity
nebula
light-year
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