Grade 3 · Science · Lesson 16

Solar System Basics

Our solar system consists of the Sun at its center and eight planets that orbit (travel around) it. Each planet is different in size, composition, and distance from the Sun. The four inner planets are rocky, while the four outer planets are much larger and made mostly of gas or ice.

What this lesson teaches

1Name the eight planets of the solar system in order from the Sun
2State one key fact about each planet

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