1. The Solar System

2. The Sun  Temperature: 6,000c (11,000 F)  Made mostly of hydrogen and helium

3. Mercury  Average Distance from the sun: 36 million miles  Average Temperature: -184 c to 465 c  Water? None  Atmosphere: Oxygen, Sodium, Helium

4. Venus  Average distance from the sun: 67 million miles  Average Temperature: 449 c  Water: CO2, H2SO4 clouds  Atmosphere: Carbon Dioxide, Nitrogen

5. Earth  Average distance from the sun: 93 million miles  Average Temperature: 7.2 c (45 F)  Water: all forms  Atmosphere: Nitrogen, Argon, Oxygen

6. Earth’s Moon  42% oxygen 21% silicon 13% iron 8% calcium 7% aluminum 6% magnesium 3% other elements The moon was formed by dust and rock that joined together to make a dustball. The dustball started to orbit around sun like any other planet but for some reason got sucked into earth's gravity and became our moon.  Water: None  Atmosphere: None

7. Mars  Average distance from the sun: 142 million miles  Average Temperature: -123 to 36 C  Water: polar ice caps  Atmosphere: Carbon Dioxide, Nitrogen, Argon  Orbit: 687 days

8. Jupiter  Average distance from the sun: 483 million miles  Average Temperature: -153 c  Water: water, ice  Atmosphere: Hydrogen, Helium, ammonium, hydrogen sulfide crystals  Orbit: 4,332.59 days

9. Jupiter’s Moon: Europa  Surface is mostly water and ice. Sulfur and carbon have been found in the surface.  Has the potential for being habitable.  Water: Icy surface tat may hide slush or even liquid water.  Atmosphere: Oxygen

10. Saturn  Average distance from the sun: 888 million miles  Average Temperature: -184 c  Water: Traces of gaseous water in atomosphere  Atmosphere: Hydrogen, Helium, Methane  Orbit: 10,759.2 days

11. Saturn’s Moon: Titan  Chemical reactions in the atmosphere are similar to those believed to have created a friendly environment for life early in Earth’s development.  The temperature on Titan, —290°F (-190°C), however, makes life impossible.  nitrogen and methane atmosphere Could have water under ground.

12. Uranus  Average distance from the sun: 30, 684 million miles  Average Temperature: -184 c  Water:  Atmosphere: Hydrogen, Helium, Methane  Orbit: 30,684 days

13. Neptune  Average distance from the sun: 2794 million miles  Average Temperature: -184c  Water:  Atmosphere: Hydrogen, Helium, Methane  Orbit: 60,190 days

14. Pluto  Average distance from the sun: 5,869 million miles  Average Temperature: -234 c  Water:  Atmosphere: Methane, Nitrogen  Orbit: 90,465 days

15. Asteroids  Asteroids, also known as minor planets or planetoids, are small rocky and metallic celestial bodies that orbit the Sun.

16. Comets  Comets are made mostly of ice (water ice, as well as carbon dioxide, or "dry" ice, and several other types), and rock.  Comets are often referred to as "dirty snowballs" because of their contents.

17. Meteoroids  Meteorites are chunks of rocks or metal that fall from space. They are named after the place they are found.  Most meteorites are very small but they can be huge and weigh more than a car.