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Eighth Grade (Grade 8) Inner Planets Questions

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Grade 8 Inner Planets
Which one of the following is a terrestrial planet?
  1. Saturn
  2. Uranus
  3. Mars
  4. Jupiter
Grade 8 Inner Planets
The largest shield volcano in our solar system is the                                    .
  1. Olympus Mons, on planet Greece
  2. Olympus Mons, on the planet Jupiter
  3. Olympus Mons, on the planet Mars
  4. Olympus Mons, on the planet Saturn
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 8 Inner Planets
What is Earth's tilt on its axis?
  1. About 23.5 degrees
  2. About 60.7 degrees
  3. About 26.6 degrees
  4. About 80.4 degrees
Grade 8 Inner Planets
Mars is                 than Earth.
  1. smaller
  2. larger
Grade 8 Inner Planets
Which planet is known as the Red Planet?
  1. Jupiter
  2. Mars
  3. Neptune
Grade 8 Inner Planets
Planet Earth is about 4.5 billion years old.
  1. True
  2. False
Grade 8 Inner Planets
These are the two possibilities that would happen after a supernova.
  1. white dwarf and neutron star
  2. neutron star and black hole
  3. white dwarf and red giant
  4. red giant and black hole
Grade 8 Inner Planets
What is the magnetosphere?
  1. glowing region in the atmosphere caused by charged particles.
  2. stream of charged particles flowing from the Sun.
  3. doughnut-shaped region 25,000 kilometers above Earth's surface.
  4. region of Earth's magnetic field shaped by the solar wind.
Grade 8 Inner Planets
Which is NOT a rocky planet?
  1. Mercury
  2. Earth
  3. Mars
  4. Neptune
Grade 8 Inner Planets
A star spends the majority of its life cycle as the                   .
  1. protostar
  2. main sequence star
  3. red giant
  4. white dwarf
Grade 8 Inner Planets
Which planet would have the longest orbit?
  1. Mercury
  2. Earth
  3. Jupiter
  4. Neptune
Grade 8 Inner Planets
At the beginning of a star's life, it starts out as this cloud of dust and gas.
  1. nebula
  2. protostar
  3. red giant
  4. neutron star
Grade 8 Inner Planets
Which planet would have the shortest orbit?
  1. Mercury
  2. Earth
  3. Jupiter
  4. Neptune
Grade 8 Inner Planets
Why is Mercury only really visible at sunrise or sunset?
  1. Since its so close to the Sun, Mercury is hidden by the Sun's glare.
  2. Mercury is hidden by Venus' path.
  3. It is impossible to see through Earth's atmosphere because it is red.
  4. It is the brightest object in the night sky
Grade 8 Inner Planets
Which of the following is NOT part of the explanation of why the Earth has a round, globe shape?
  1. Absent other gravitational forces, liquids draw themselves into spheres
  2. If early planets were hot enough to melt, their shapes would be drawn into spheres
  3. As planets cool from a liquid form, their liquid spherical shapes are essentially "frozen" in place
  4. All of the above are part of the explanation of why the Earth has a spherical shape
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