| A | B |
| Mercury | the planet that is closest to the sun and that has a diameter of about 3000 miles |
| Venus | The second planet of the solar system in order of distance from the sun. It is brighter than any other heavenly body except the sun and the moon. |
| Earth | The planet on which human beings live. |
| Mars | The planet that is fourth in distance from the sun. It is known as the red planet. |
| Jupiter | The planet that is fifth in distance from the sun. It is the larget planet in our solar system. |
| Saturn | The planet that is sixth in distance from the sun. It has many rings around it and is the second largest planet. |
| Uranus | The seventh planet in order of distance from the sun. It is the third largest planet in the solar system. It spins on its side. |
| Neptune | The eighth planet in order of distance from the sun. It is the fourth largest planet in the solar system. |
| Pluto | This is the smallest and coldest planet. It is located the farthest away from the sun. |
| asteroid | one of the thousands of small planets that orbit the sun, mostly in the region between Mars and Jupiter |
| The Milky Way Galaxy | the galaxy in which the sun and the solar system are located and that contains the stars of the Milky Way |