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The Solar System. List the 9 planets in our solar system. Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto (dwarf planet). 2. List each planet and the main facts about each. Mercury. 2 nd smallest planet no atmosphere craters smooth terrain deep slopes
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List the 9 planets in our solar system. • Mercury • Venus • Earth • Mars • Jupiter • Saturn • Uranus • Neptune • Pluto (dwarf planet)
Mercury • 2nd smallest planet • no atmosphere • craters • smooth terrain • deep slopes • 1 rotation = 59 days • Temp: 800 F to -279 F
Venus • Orbits sun every 255 days • Thick clouds • Volcanic activity • Tectonic activity • 80% plains covered by volcanic flows • Temp: 887 F • Atmosphere is 97% CO2
Mars • The red planet • White polar caps • Large dust storms • Hurricane force winds • Large volcanoes • Large canyons • Temp: - 94 F to – 148 F
Jupiter • largest planet • 1 rotation = 10 hours • great red spot – a cyclonic storm • hydrogen-helium atmosphere • winds cause light and dark bands • immense gravity • gigantic ocean of liquid hydrogen • 28 moons
Saturn • 29.46 years to make one revolution around the sun • Rings made of ice and rock particles • Winds up to 637.5 mph • Large cyclonic storms • 31 moons
Uranus • Rotates on its side • Has rings • Takes 84.01 years to make one revolution around the sun
Neptune • Winds up to 625 mph • Great dark spot – a large rotating storm • 13 moons
Pluto • 248 years to orbit the sun • classified as a dwarf planet • Average temp: 346 F • Dirty ice ball
List the terrestrial planets. • Mercury • Venus • Earth • Mars
4. What does the term, “terrestrial” mean? Earth-like
5. List the jovian planets. Jupiter Saturn Uranus Neptune
6. What does the term, “jovian” mean? Jupiter-like
7. What are the terrestrial planets made of? Rocky and metallic substances
8. What are the jovian planets made of? Gases – hydrogen and helium Ice
9. Nebula Cloud of dust and gas in space
10. What is the nebular theory? The sun and planets formed from a rotating disk of dust and gases
11. Planetesimals Small, irregular shaped bodies resulting from colliding bits of matter.
12. How did the distance from the sun affect the creation of planets? • Planets closer to the sun formed from materials with higher melting points – metals and silicate minerals. • Planets further from the sun formed with solid materials and ices.
13. Asteroid Small rocky bodies
14. Comet Pieces of rocky and metallic materials
15. Coma The glowing head on a comet
16. Meteoroid A small solid particle traveling through space.
17. When is a meteoroid called a shooting star? When it enters the earth’s atmosphere.
18. Meteor A meteoroid that does not enter the earth’s atmosphere.
19. Meteorite A meteoroid that reaches the earth’s surface.