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Science Note-Taking: The Planets (Grade 6)

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Science Note-Taking: The Planets

Instructions: An important part of science is doing research. Before scientists begin to design and conduct experiments, they research background information on the topic. Knowing how to identify key information from articles is a skill all scientists must develop.

Read the following passage. Then, use the Venn diagram to compare and contrast the inner planets and the outer planets.

Inner Planets and Outer Planets
Our solar system has eight planets. Each of the planets is unique. However, the four inner planets (B - E) closest to the sun (A) share some similar properties, as do the four outer planets (F - I) farthest from the sun.
Solar System
The four inner planets, in order from the sun, are Mercury, Venus, Earth, and Mars. They are also called terrestrial planets. The four outer planets, in order from the sun, are Jupiter, Saturn, Uranus and Neptune. They are also called Jovian planets.

The inner planets have rocky surfaces. The outer planets are gas giants and do not have solid surfaces. The inner planets are smaller in size compared to the four outer planets of our solar system. Outer planets have ring systems around them, whereas inner planets do not have rings. Mercury and Venus have no moons, Earth has one moon, and Mars has two moon. All of the outer planets have many moons.

Despite the differences between the inner planet and outer planets, all of the planets share some similar characteristics. All the planets rotate, or spin, around an invisible axis line. Each planet revolves around the sun. The planets are all close to spherical in shape, although some are more round than others. The solar system is an amazing place!


Use the Venn diagram to compare and contrast inner planets and outer planets. Be sure to label your diagram.

Venn Diagram



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