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Ninth Grade (Grade 9) Solar System Questions

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Grade 9 Planetary Motion
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 Sun
What lies at the center of our solar system?
  1. the Sun
  2. Mars
  3. Earth
  4. the Moon
Grade 9 Inner Planets
When the solar system formed, which planets lost most of their gases to the Sun?
  1. the inner planets
  2. the comets
  3. the outer planets
  4. the asteroids
Grade 9 Outer Planets
The rings of the planet pictured below are mainly made of what?
Planet Saturn - Small
  1. water ice.
  2. helium gas.
  3. liquid hydrogen.
  4. frozen carbon dioxide.
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
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 9 The Moon
A lunar eclipse can only occur during which phase of the Moon?
  1. Quarter Moon
  2. New Moon
  3. Full Moon
  4. Crescent Moon
Grade 9 Inner Planets
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 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
What is 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 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 Planetary Motion
The force that holds planets in their orbits is called
  1. parallax.
  2. revolution.
  3. rotation.
  4. gravity.
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 Inner Planets
Which describes 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 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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