| A | B |
| Mercury | rocky planet that is closest to the Sun and is the smallest planet in the solar system |
| Venus | rocky planet that is second from the Sun and is closest to Earth in size |
| Earth | the third planet from the Sun and the largest of the inner,rocky planets |
| Mars | The fourth rocky planet from the Sun. It is larger than Mercury but smaller than Venus. |
| Jupiter | A gaseous planet that is fifth from the Sun and the largest planet in solar system |
| Saturn | A gaseous planet that is sixth from the Sun and the second largest planet in the solar system |
| Uranus | A gaseous planet that is seventh from the Sun and the third largest planet in the solar system. |
| Neptune | A gaseous planet that is the farthest from the Sun and the fourth largest planet in the solar system. |
| solar system | made of the Sun and all objects that are bound to the Sun by gravity |
| planet | a large body of rock or gas that orbits the Sun |