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Sixth Grade (Grade 6) Solar System Questions

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Grade 6 Solar System
Which of the following is NOT a major difference between the inner and outer planets?
  1. Inner planets are close together, but outer planets are spread far apart.
  2. Inner planets are smaller and outer planets are bigger.
  3. Inner planets are made out of rock, but outer planets are made out of gas.
  4. Inner planets have moons, but the outer planets do not have moons.
Grade 6 Inner Planets
Which of these is not one of the inner planets?
  1. Earth
  2. Uranus
  3. Venus
  4. Mercury
Grade 6 Inner Planets
Which statement about the inner planets is TRUE?
  1. All inner planets are mostly covered with water.
  2. The inner planets have common types of rocky landforms such as mountains and volcanoes.
  3. Earth is the hottest inner planet.
  4. The inner planets all have thick, very protective atmospheres.
Grade 6 Inner Planets
Which four letters represent terrestrial planets on the solar system diagram shown?
Solar System
  1. A, B, C, D
  2. B, C, D, E
  3. E, F, G, H
  4. F, G, H, I
Grade 6 Planetary Motion
Which of these planets spins clockwise?
  1. Venus
  2. Jupiter
  3. Earth
  4. Mars
Grade 6 Inner Planets
Which planet in our solar system is the smallest?
  1. Saturn
  2. Mars
  3. Earth
  4. Mercury
Grade 6 Outer Planets
Which statement about the outer planets is TRUE?
  1. The outer planets do not have many moons.
  2. Saturn is the only outer planet that has rings.
  3. The outer planets are all very warm and have volcanoes.
  4. The atmosphere of the outer planets are made of thick and swirling gases.
Grade 6 Small Bodies and Dwarf Planets
How often can Halley's Comet be seen with the unaided eye?
  1. never
  2. 76 times a year
  3. every 76 years
  4. every 76 centuries
Grade 6 Outer Planets
A day on Neptune is longer than a day on Earth.
  1. True
  2. False
Grade 6 Inner Planets
Which is true about Earth?
  1. It has water.
  2. It is habitable.
  3. It is our home planet.
  4. All of the above
Grade 6 Outer Planets
Jupiter's composition is most like that of                .
  1. a star
  2. the Moon
  3. an asteroid
  4. a black hole
Grade 6 Planetary Motion
The fewest hours of daylight occur on the                .
  1. fall equinox
  2. spring equinox
  3. winter solstice
  4. summer solstice
Grade 6 Planetary Motion
Which statement about Earth's rotation and its revolution is correct?
  1. It takes Earth longer to rotate on its axis than revolve around the Sun.
  2. It takes Earth longer revolve around the Sun than to rotate on its axis.
  3. It takes Earth longer to rotate around the Sun than revolve on its axis.
  4. It takes Earth longer revolve around the Sun than to revolve on its axis.
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