1. THE SOLAR SYSTEM CHAPTER 19
By; Noah, Kyle, Andrew, Andrew, Kyle

2. THE SUN Nine planets orbit the sun
The closest star to Earth, and because of it’s close distance it is bright enough to sustain life on Earth
The Sun is the center of our Solar System
The Sun’s surface is 15,000,000 degrees Celsius
The Sun’s gravity keeps all of the planets in orbit, instead of flying off into space
Its diameter is 1.4 million KM, 110 times the diameter of the Earth

3. Mercury Closest planet to the Sun Undertakes extreme temperatures
Is spotted with craters
Mercury is .4 AU from the sun
Has no atmosphere
Temperatures- 670K-103K
A day on Mercury is 176 Earth days
No life on Mercury, due to no atmosphere

4. Venus 2nd planet from the sun .7 AU from the sun
Thick layers of carbon dioxide clouds rest on Venus which make Venus very reflective
Venus has mountains and plains
Unlike other planets, Venus rotates in the opposite direction (east to west)
Venus’s environment cannot support life because the atmosphere is thickly laced with sulfuric acid
Venus has a very strong greenhouse effect

5. Earth Third planet from the sun
Only planet that has proven to sustain life so far
Has one moon
80 percent water
Ideal conditions for life
Earth’s atmosphere protects us from radiation from space

6. Mars Fourth planet from the sun Many missions have been sent to Mars
Has the largest volcanoes in the Solar System
Believed that water used to run on Mars
Temp- 144K to 300K

7. Jupiter Gas Giant Fifth planet from the sun
Great Red spot is a giant storm 3 times the size of Earth
61 moons
1 day on jupiter is 10 hrs, 1 year is 12 Earth years

8. Saturn Gas giant Biggest ring system 1 day is 10.7 Earth hours
Rings are made of dust, ice, and rock particles
Saturn may still be forming
Saturn’s outer layers are made of helium

9. Uranus
Gas Giant
Gaseous atmosphere consists of hydrogen, helium, and methane
Methane colors Uranus blue
7th planet from the sun
84 y to orbit the sun
30 AU from the sun

10. Neptune 8th planet from the sun 1 day is 16 hrs
Very close atmosphere to Uranus
1 year on Uranus is 164 Earth years

11. Pluto The oddball planet 1 y is 284 earth y Discovered 1930
Solid icy surface, thin gaseous atmosphere
Orbits sun on long ellipse, on a different angle than the rest
40 AU from the sun

12. The Asteroid and Kuiper Belt
Between Mars and Jupiter
Divides the inner/outer planets
Asteroids are 3km to 700km in diameter
Made of iron, nickel, water, rock
The Kuiper Belt lies on the outside of the Solar System
Made of pieces of planets from the formation of the Solar System
Lies beyond the orbit of Neptune