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Solar system
| Question | Answer |
|---|---|
| Astronomical unit | Used to measure far distance in space 1- Au distance from earth to sun |
| Meteoroid | Chunk of rock smaller than a asteroid |
| Meteor | Streak of light |
| Mereorite | Space rock found earth |
| Asteroids | Millions of small rock objects that orbit the Sun in the asteroid belt between mars and Jupiter |
| Comets | Made of gas dust and ice revolve around the sun in the Jupiter belt and out loud |
| Inner planets | Terrestrial plants. Mercury,Venus, earth, mars Solid and rocky |
| Outer planets | Gas giants Rings and moons Made of ice and gas Jupiter Saturn Neptune |
| Planets | Spherical orbits the sun clears its orbit. |
| Mercury | Closets planet to the sun Not the hottest so it lacks gravity and atmosphere |
| Venus | Hottest planet Green house effect Day is longer than a year rotation time is longer than it’s revolution Acid clouds |
| Earth | Only planet with know life Moderate temperature Protective atmosphere Liquid water |
| Mars | Largest known moutian Olympus moons Possible life |
| Terrestrial | The four inner planets |
| Green house affect | Occurs when a planets atmosphere traps solar energy and causes the temperature to increase |
| Jupiter | Largest planet Galilean moons. Great Red Spot |
| Satrun | Most complex ring system Least dense planet it would float. Titan largest moon |
| Uranus | Rotation axis is titled 90 degrees so rotates like a bowling ball |
| Neptune | Longest period of revolution Swirling storms windiest planets |
| Gas giants | Jupiter, Saturn, Uranus , Neptune, nick name 4 outer planets |
| Galilean moons | 4 moons Galileo discovered around Jupiter Lo, Europa, Ganymede, Callisto. |
| Dwarf planets | Pluto came first Same as planet but not. Lager than its neighbors. Ceres in asteroid belt. |