| A | B |
|---|
| star | A very large mass of hot glowing gas. |
| planet | A large body of matter that moves around a star such as the sun. |
| solar system | The sun, planets and their moons, and other objects that move around the sun. |
| crater | A large hole in the ground that is shaped like a bowl. |
| Mercury | The closest planet tot he sun. Mercury is hot, dry, and covered with craters. |
| Mars | The fourth planet from the sun. Mars is called the red planet because its surface is reddish in color. |
| Jupiter | The fifth planet from the sun and the bigget in the solor system. |
| Venus | The second planet from the sun surrounded by a thick layer of clouds. |
| Earth | The third planet from the sun that looks like a blue and white ball. |
| Pluto | The ninth planet from the sun and farthest from the sun. A small frozen planet with one moon. |
| Pluto | The ninth planet from the sun and farthest from the sun. Pluto is a small frozen planet with one moon. |
| Neptune | The eighth planet from the sun with eight moons. Neptune is a large, cold planet made of gases. |
| Uranus | The seventh planet from the sun that is made of a ball of gas. Uranus looks blue-green and has at least 15 moons. |
