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- 1. Multiple Choice
How many planets are there in the solar system?
6
8
9
14
- 2. Multiple Choice
Which is NOT part of our solar system?
the moons around Jupiter
asteroids and meteoroids
comets
stars that are not the Sun
- 3. Multiple Choice
The ____ are the four planets closest to the Sun
outer planets
gas giants
inner planets
larger
- 4. Multiple Choice
The inner planets rotate _____ than the outer planets.
more slowly
more quickly
more frequent
less frequent
- 5. Multiple Choice
Which two planets do not have moons?
Mercury and Mars
Mercury and Neptune
Mercury and Venus
Venus and Mars
- 6. Multiple Choice
Some of the dwarf planets in our solar system are:
Makemake, Ceres and Charon
Pluto, Pallas and Eris
Eris, Pluto and Nix
Haumea, Pluto and Eris
- 7. Multiple Choice
The moons are made up of:
rock or ice
rock or gas
rock or metals
ice or gas
- 8. Multiple Choice
The outer planets are ____ than the inner planets,
smallest
larger
slower
rocky
- 9. Multiple Choice
The outer planets are also called ________.
terrestrial planets
larger planets
gas giants
farthest planets
- 10. Multiple Choice
The outer planets have thick atmospheres of ____ and ______.
oxygen and helium
carbon dioxide and helium
hydrogen and nitrogen
Hydrogen and helium
- 11. Multiple Choice
The four inner planets are:
Jupiter, Saturn, Uranus and Neptune
Mercury, Venus, Earth and Pluto
Mercury, Venus, Earth and Mars
Jupiter, Saturn, Neptune and Pluto
- 12. Multiple Choice
The four outer planets are:
Jupiter, Saturn, Uranus and Neptune
Mercury, Venus, Earth and Pluto
Mercury, Venus, Earth and Mars
Jupiter, Saturn, Neptune and Pluto
- 13. Multiple Choice
The ______ do not have solid surfaces and have a small, rocky core.
outer planets
terrestrial planets
inner planets
smallest
- 14. Multiple Choice
The outer planets are also called ________.
gas giants
terrestrial planets
inner p[lanets
smallest
- 15. Multiple Choice
The outer planets are made of _____.
rock and ice
rock and metals
gas
ice
- 16. Multiple Choice
The outer planets all have a core, mantle, and crust.
True
False
- 17. Multiple Choice
The outer planets are also called gas giants
True
False
- 18. Multiple Choice
Moons are rocky, some are icy, but none of them are made entirely of gas.
True
False
- 19. Multiple Choice
The inner planets have few or no moons, no rings, and they rotate more slowly than the outer planets.
True
False
- 20. Multiple Choice
Each inner planet also has many moons.
True
False
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