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Fourth Grade (Grade 4) Solar System Questions

You can create printable tests and worksheets from these Grade 4 Solar System questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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Grade 4 Outer Planets
Rings around planets are made of
  1. asteroids.
  2. comets.
  3. rock, ice crystals, and dust.
  4. moons.
Grade 4 Solar System
How do the Sun, Earth, and Moon compare in their ability to support life?
  1. Life exists on Earth and Sun, but not on the Moon.
  2. Life exists on the Sun, Earth, and Moon.
  3. Life exists on Earth, but not on the Sun or Moon.
  4. Life exists on Earth and Moon, but not on the Sun.
Grade 4 Outer Planets
Which of these planets takes longer than Jupiter to orbit the Sun?
  1. Mars
  2. Earth
  3. Mercury
  4. Neptune
Grade 4 The Moon
The shapes that the Moon seems to have are called          phases         .
Grade 4 Inner Planets
Venus spins in the opposite direction of Earth.
  1. True
  2. False
Grade 4 Outer Planets
Saturn is the largest planet in the solar system.
  1. True
  2. False
Grade 4 Sun
The Sun is made up of what?
  1. plasma
  2. lava
  3. plastic
  4. fire
Grade 4 Outer Planets
Who was Neptune named after?
  1. God of War
  2. God of Water
  3. Goddess of Love
  4. Goddess of Light
Grade 4 Sun
The Sun is responsible for                 percent of the total solar system mass.
  1. 99.86
  2. 100
  3. 50
  4. 25
Grade 4 Planetary Motion
An imaginary line that runs through both poles of a planet is its                .
  1. star
  2. orbit
  3. comet
  4. axis
Grade 4 Inner Planets
Venus is named after the
  1. goddess of beauty.
  2. god of agriculture.
  3. person who discovered it.
  4. goddess of war.
Grade 4 Small Bodies and Dwarf Planets
All asteroids are perfectly round.
  1. True
  2. False
Grade 4 Outer Planets
Which of the following outer planets is the 7th from the Sun, blue-green in color and tilts way over on its axis?
  1. Saturn
  2. Jupiter
  3. Neptune
  4. Uranus
Grade 4 Outer Planets
You can live on Neptune.
  1. True
  2. False
Grade 4 Inner Planets
Which of the following planets is closest to the Sun?
  1. Mars
  2. Venus
  3. Earth
  4. Mercury
Grade 4 Inner Planets
If a person could walk around Earth at its equator, it would take more than one year.
  1. True
  2. False
Grade 4 Outer Planets
Saturn is known a the windiest planet in the solar system.
  1. True
  2. False
Grade 4 Planetary Motion
A solar eclipse occurs when the Moon is aligned perfectly as it passes directly between the Sun and Earth.
  1. True
  2. False
Grade 4 Inner Planets
Why is Mars nicknamed the "Red Planet"?
  1. It looks red because of all of the fires on it.
  2. It looks red because of all of the strawberries on it.
  3. It looks red because of all of the volcanoes exploding on it.
  4. It looks red because of the rusty iron dioxide dirt.
Grade 4 Outer Planets
Uranus has 4 moons.
  1. True
  2. False
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