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Ninth Grade (Grade 9) Solar System Questions

You can create printable tests and worksheets from these Grade 9 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 9 Outer Planets
What is the name of the region where icy bodies that lie beyond Neptune's orbit?
  1. The Kuiper Belt
  2. The Oort Cloud
  3. The Outer Asteroid Belt
  4. All of the Above
Grade 9 Planetary Motion
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 9 Planetary Motion
One day on Mercury is equal to about 59 Earth days. Which statement best explains this phenomena?
  1. Mercury rotates slower than the Earth
  2. Mercury revolves faster than the Earth
  3. Earth is farther from the Sun than Mercury
  4. Earth has a lower orbital eccentricity than Mercury
Grade 9 Inner Planets
Select the letter of Mercury's position in the solar system.
  1. innermost terrestrial planet
  2. innermost Jovian planet
  3. outermost terrestrial planet
  4. outermost Jovian planet
Grade 9 Small Bodies and Dwarf Planets
Which of the following is NOT a possible source of meteoroids?
  1. solid remains of comets that once traveled near Earth's orbit
  2. gassy ices that were not incorporated into the planets
  3. material from the asteroid belt
  4. interplanetary rocks and metals that was not incorporated into the planets
Grade 9 Planetary Motion
Select the letter of the two main motions of the Earth.
  1. rotation and precession
  2. rotation and revolution
  3. revolution and precession
  4. rotation and aphelion
Grade 9 Planetary Motion
Grade 9 Outer Planets
Io is part of
  1. Mars
  2. Venus
  3. Jupiter
  4. the moon
Grade 9 Solar System
How did the solar system form?
  1. an expanding galaxy
  2. cloud of gas and dust pulled together by gravity
  3. an enormous explosion
  4. a black hole's gravity
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
How long does it take earth to complete a rotation?
  1. 29.5 days
  2. 365.25 days
  3. 24 hours
  4. 72 hours
Grade 9 The Moon
Grade 9 Planetary Motion
If it is summer in the northern hemisphere what is the orientation of the southern hemisphere to the sun?
  1. pointing towards the sun
  2. pointing away from the sun
  3. pointing towards the moon
  4. pointing away from the moon
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