Earth is a planet that revolves around the Sun. Eight other planets travel around the sun too. Together, the sun and its nine planets make up our the solar system.
	· Let's take a quick look at our solar system and the position of the planets compared to the Sun. Click on the planets to begin your exploration. Then answer the questions. Mercury, Venus, Earth, and Mars are known as the small outer inner planets. Which planet is closest to the sun? Mercury Earth Mars Press the button to see how well you did.

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