| A | B |
|---|
| Orbit | Path of a celestial body as it revolves around another body. |
| Asteroid | Celestial bodies that revolve around the sun. Most live between Jupiter and Mars. |
| Saturn | Second largest planet. It has rings around it. |
| Venus | The second planet from the sun. |
| Mars | The fourth planet from the sun. |
| Uranus | The seventh planet from the sun. |
| Pluto | The furthest planet from the sun. The smallest planet. |
| Sun | A star that is the center of our planetary system. |
| Neptune | Eighth planet from the sun. |
| Earth | The only planet that supports life. |
| Mercury | Closest planet to the sun. |
| Satellite | A celestial body that orbits a planet. |
| Meteoroid | A solid body moving in space. Smaller thatn an asteroid. |
