Which planet has a moon with lakes and rivers of liquid methane and ethane?
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Triton
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Ganymede
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Titan
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Europe
What is the smallest planet in our solar system?
Pluto
Earth
Mercury
Venus
What is the faint blue glow seen in Earth's upper atmosphere called, caused by sunlight scattering?
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Aurora
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Rayleigh light
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Corona
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Airglow
Which is the only planet known to support life?
What do we call a frozen ball of gas, dust, and rock that orbits the Sun?
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Comet
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Meteor
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Satellite
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Asteroid
What do we call the path a planet takes around the Sun?
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Rotation
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Orbit
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Axis
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Revolution
Which planet is called Earth’s “twin” because of its similar size?
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Saturn
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Mars
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Venus
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Neptune
Which planet has the fastest winds in the solar system, reaching over 1,000 mph (1,600 km/h)?
Saturn
Earth
Jupiter
Urenus
Which dwarf planet lies in the asteroid belt between Mars and Jupiter?
Which planet has a day longer than its year?
Mercury
Venus
Jupiter
Mars