Can You Pass This 5th Grade Science Quiz?

Which Planet In Our Solar System Is The Closest To The Sun?

Retry Correct Incorrect Mercury is the closest planet to the sun, which means that it’s also the hottest planet in our solar system. Mercury’s temperatures can get hot enough during the day to actually melt lead.

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Photo by: Universal History Archive/UIG via Getty Images

Photo by: Universal History Archive/UIG via Getty Images

Which Planet In Our Solar System Is The Closest To The Sun?

• Mars
• Mercury
• Venus
• Jupiter