Are You Smarter Than A Fifth Grader? Test Your Elementary School Knowledge

Which planet is known as the “Red Planet”?

Retry Correct Incorrect The correct answer is Mars. Mars is known as the “Red Planet” due to its reddish appearance, which is actually caused by iron oxide (rust) on its surface. Is your planet knowledge a little rusty, too?

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Which planet is known as the “Red Planet”?

• Jupiter
• Saturn
• Venus
• Mars