The next two readings talk more about the planets in the solar system. They are divided into the inner planets, or the four closest to the sun, and the outer planets, or the four that are farthest from the sun. This video explains some characteristics of each of the planets. Pay attention for the differences between the four inner planets (Mercury, Venus, Earth, and Mars) and the four outer planets (Saturn, Jupiter, Uranus, and Neptune).
And keep a look out for poor Pluto. Even though Pluto is not considered a planet anymore, he still makes an appearance in the video.