| Term | Definition |
|---|---|
| Mercury | 1st planet; 8th largest (smallest). Nickname is Morning Star (can be seen just before sunrise). Looks like Earth's moon-rocky, crated, gray solar winds makes its atmosphere very thin. 2nd densest next to Earth. Widest temperature range. |
| Venus | 2nd planet; 6th largest. Nickname is Evening Star or Earth's Sister. Similar to Earth, but there's NO water and has many volcanoes. 2nd brightest in the night sky, 1st is the moon. |
| Earth1 | 3rd planet; 5th largest. Rocky planet with mountains, valleys, canyons, plains, and glaciers. 70% of Earth is covered by oceans. Densest planet, only one with solid plates floating on a hot mantle. |
| Earth2 | |
| Mars | |
| Jupiter | |
| Saturn | |
| Uranus | |
| Neptune |
