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Third Grade (Grade 3) Astronomy Questions

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Grade 3 Small Bodies and Dwarf Planets
A rocky object that orbits the sun
  1. Comet
  2. Meteor
  3. Star
  4. Asteroid
Grade 3 Inner Planets
The second closest planet to the sun,         Venus        , is also the hottest.
Grade 3 Small Bodies and Dwarf Planets
What comes between the inner and outer planets?
  1. an asteroid belt
  2. the Milky Way
  3. the Sun
  4. Titan
Grade 3 Planetary Motion
Which of these words is the name for the imaginary line in which the Earth rotates?
  1. sun
  2. axis
  3. model
Grade 3 Sun
What is the closest star to Earth?
  1. Mars
  2. Mercury
  3. Earth
  4. Venus
  5. Sun
  6. None of the above
Grade 3 Inner Planets
Mercury is NOT the hottest planet in the solar system.
  1. True
  2. False
Grade 3 Outer Planets
What is the 5th planet from the sun?
  1. Earth
  2. Mars
  3. Jupiter
  4. Mercury
  5. Neptune
Grade 3 Inner Planets
If the Earth were closer to the sun
  1. the temperature would be much hotter.
  2. the oceans would dry up.
  3. we could not survive.
  4. all of the above.
Grade 3 Inner Planets
The Earth is the                 planet from the sun.
  1. first
  2. second
  3. third
  4. fourth
Grade 3 Solar System
The solar system consists of                 known planets.
  1. 7
  2. 8
  3. 9
  4. 6
Grade 3 Inner Planets
Which planet is closest to the sun?
  1. Earth
  2. Venus
  3. Mars
  4. Mercury
Grade 3 Outer Planets
Uranus and Neptune both have gas clouds made of crystals of methane gas.
  1. True
  2. False
Grade 3 Solar System
Uranus is the coldest object in the solar system.
  1. True
  2. False
Grade 3 Small Bodies and Dwarf Planets
Which of these is not a planet?
  1. Venus
  2. Pluto
  3. Mars
Grade 3 Space Exploration
America's agency in charge of exploring space is called NASA.
  1. True
  2. False
Grade 3 Sun
Which of the following is the center of the Solar System?
  1. Sun
  2. Moon
  3. Asteroid Belt
  4. Saturn's Rings
Grade 3 Outer Planets
The planets farthest from the sun are called the                  .
  1. inner planets
  2. outside planets
  3. satellite planets
  4. outer planets
Grade 3 Outer Planets
The outer planets are also called                .
  1. gas giants
  2. solid cores
  3. cold planets
  4. warm planets
Grade 3 Inner Planets
Venus rotates counterclockwise.
  1. True
  2. False
Grade 3 Inner Planets
I am sometimes called Earth's twin planet. We are very close to the same size.
  1. Mercury
  2. Venus
  3. Mars
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