Neptune

Neptune

Neptune
Reading Level

	edHelper's suggested reading level:	grades 3 to 5
	Flesch-Kincaid grade level:	3.5

Vocabulary

	challenging words:		gravity, blue-green, eighth, rocks, pounds, winds, planet, fourth-largest, billion, faster, rings, faint, surface, giant, last, mystery
	content words:		On Earth, Where Neptune

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Other Languages
Spanish: Neptuno

Neptune
By Cindy Grigg

¹     Neptune is the eighth and last real planet in our solar system. It is 2 billion, 795 million miles from the sun. That's about thirty times Earth's distance from the sun. It is the fourth-largest planet. It is the smallest of the gas giant planets, but it is about four times larger than Earth. Its gravity is greater than Earth's gravity. If you weigh 100 pounds on Earth, you would weigh 110 pounds on Neptune.

²     Neptune does not have a solid surface. It is a giant ball of gas with a center of rock and iron. It looks blue-green and is covered with clouds. Neptune, because of its bluish color, was named for the Roman god of the sea.

Paragraphs 3 to 4:
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