| A | B |
|---|
| Astronomical Unit (AU) | AU = average distance b/w Earth and Sun. |
| AU distance in km | Approximately 150 million km |
| AU distance in miles | 93 million miles |
| Define light year | Distance light travels in one year |
| List the Inner Planets | Mercury, Venus, Earth, Mars |
| Composition of Inner Planets | Generally rocky |
| Size of Inner Planets (generally) | Inner Planets are small compared to Outer Planets |
| List Outer Planets | Jupiter, Saturn, Uranus, Neptune |
| Size and Composition Outer Planets | Large and Gaseous |
| Three gases found in atmosphere of all outer planets | H, He, and Methane |
| These two outer planets have an icy rock core | Jupiter and Saturn |
| Which outer planets have liquid water? | Uranus and Neptune |
| The Great Red Spot is found on... | Jupiter |
| This planet has 100's of rings | Saturn |
| Now considered an Ice Dwarf | Pluto |
| Theory explains origin of Solar System | Accretion Theory |
| Our Galaxy type | Barred Spiral |
| Name our Galaxy | Milky Way |
| Our Sun is in a system of stars called... | The Orion Spur |
| Earth is the ___ rock from the Sun. | third |
| A planet's "Period of Revolution is the ..." | amount of time needed to orbit the Sun |
| Four types of celestial bodies which orbit the Sun: | Comets, Asteroids, Meteors and Planets |
| This Inner Planet has no true atmosphere | Mercury |
| Superheated planet due to greenhouse effect of abundant carbon dioxide gas | Venus |
| Earth and what other inner planet has polar ice caps? | Mars |
| Asteroid Belt location | Between Mars and Jupiter |
| What is the Kuiper Belt? | Disk-shaped region of icy debris |
| Where is the Kuiper Belt? | Beyond Pluto: 2.8 billion to 4.6 billion miles from the Sun |
