STEM Quiz (Grades 3-6): Our Solar System

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Earth is 13/50 the diameter of Uranus, and Saturn is 5/2 the diameter of Uranus. Expressed as a simple fraction, how many times Earth’s size is the size of Saturn?

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Which planets are gas planets or also called gas giants?  (select all that apply)

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All outer planets ______ have rings around them, but only the Saturn’s are visible to us from Earth.

The largest non-planet objects in our solar system are our own Moon ( radius=1738 km), Io (1810 km), Eris (1,500 km), Europa (1480 km), Ganymede (2600 km), Callisto (2360 km), Makemake (800 km),Titan (2575 km), Triton (1350 km), Pluto (1,200 km), Haumea (950 km). Create a chart that orders these bodies from smallest to largest and check what is the: A) Average radius; B) Median radius.

At 21.9 km, the large shield volcano Olympus Mons on ____ is the highest mountain in the solar system. It is about two and a half times the height of Mount Everest, the tallest mountain on Earth.

Which planet is the second-brightest object in the night sky — the only thing brighter is the moon?

Which planet is the smallest one in the solar system?

______ is called earth’s sister because the two planets are very close in size and gravity, but their surfaces are very different.

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Which planet is the hottest one in the solar system?

Jupiter is 7/6 the diameter of Saturn, and Saturn is 5/2 the diameter of Uranus. Expressed as a simple fraction, how big is Uranus compared to Jupiter?  (Credit: NASA)

What is the relative size of Earth, Jupiter, Sun? (listed as Earth: Jupiter: Sun)

Why is Mars known as the ‘red planet?’

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What separates the terrestrial planets from the gas planets (or Jovian planets) in space?

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