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Solar System Questions - All Grades

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Grade 2 Sun
Grade 9 Planetary Motion
Grade 5 Inner Planets
List the four inner planets in order from the sun.
  1. Mercury, Venus, Earth, Mars
  2. Mercury, Earth, Venus, Neptune
  3. Mars, Earth, Venus, Mercury
  4. Mars, Venus, Earth, Saturn
Grade 9 Outer Planets
What is the name of the region beyond Neptune's orbit where icy bodies lie?
  1. The Kuiper Belt
  2. The Oort Cloud
  3. The Outer Asteroid Belt
  4. All of the Above
Grade 9 Planetary Motion
How long does it take earth to complete one revolution?
  1. 29.5 days
  2. 365.25 days
  3. 24 hours
  4. 72 hours
Grade 8 Inner Planets
Earth is the only planet in the solar system that has
  1. clouds.
  2. a solid core.
  3. oceans of liquid water.
  4. a thick atmosphere.
Grade 6 Sun
Grade 9 Planetary Motion
The gravitational attraction between sun, moon, and Earth
  1. causes tides.
  2. causes seasons to change.
  3. causes a full moon.
Grade 7 Planetary Motion
Day and night are caused by
  1. the tilt of the earth's axis.
  2. earth's revolution around the sun.
  3. eclipses.
  4. earth's rotation on its axis.
Grade 6 Inner Planets
Which planet is known as "Earth's Twin?"
  1. Saturn
  2. Mars
  3. Uranus
  4. Venus
Grade 9 Planetary Motion
Planets that are close to the sun
  1. move through the asteroid belt.
  2. orbit faster than the outer planets.
  3. orbit slower than the outer planets.
  4. move closer and closer to the sun.
Grade 9 Planetary Motion
The moon moves in a line directly between Earth and the sun, casting a shadow on Earth.
  1. Solar Eclipse
  2. Lunar Eclipse
  3. Winter Solstice
  4. Earth Eclipse
Grade 6 Small Bodies and Dwarf Planets
Large pieces of space rock with irregular shapes are called
  1. asteroids.
  2. comets.
  3. meteors.
  4. dwarf planets.
Grade 9 Inner Planets
Grade 9 Small Bodies and Dwarf Planets
Between what two planets is the asteroid belt located?
  1. Mercury and Earth
  2. Mars and Jupiter
  3. Jupiter and Saturn
  4. Earth and Mars
Grade 9 Planetary Motion
An eclipse of the moon, when the moon passes through Earth’s shadow.
  1. Solar Eclipse
  2. Lunar Eclipse
  3. Summer Solstice
  4. Earth Eclipse
Grade 6 Small Bodies and Dwarf Planets
What is the name given to an area between Mars and Jupiter?
  1. Solar System
  2. Asteroid Belt
  3. Kuiper Belt
  4. Gas Giants
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