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| Term | Definition |
|---|---|
| Venus | planet with the hottest average temperature |
| Mars | iron in the soil gives it a reddish color |
| Oort cloud | farthest cluster of comets from the sun |
| Saturn | moon named titan |
| Mercury | Smallest orbital period |
| gas | four large planets are made of |
| Newton | Explained why planets stay in orbit |
| Meteor | streak of light, called a shooting star |
| Keplan | Discovered the orbit of planets are ellipses |
| Uranus | axis tilted more than 90 degrees |
| Earth | Orbital radius equals 1 astronomical unit (AU) |
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| Terms | 11 |
| Creator | duvalawo1 |
| Created | March 5, 2009 |
| Groups | None |
| Subject | earth science |
| Access | Anyone |
| Edit | Creator Only |