Post on 14-Dec-2015
1._____type of eclipse that occurs when the Earth cast a shadow on the moon (eclipses)
2.____type of galaxy the Milky Way is (Milky Way)
3.____giant clouds of dust and gas that form solar systems (big bang)
4.____hottest planet (planets)
5.____ type of moon that occurs during a lunar eclipse (eclipse)
Do Now
1._____type of eclipse that occurs when the moon cast a shadow on the Earth (eclipses)
2.____the force that keeps planets from being pulled into the sun (rotation/revolution)
3.____the spinning motion of Earth to rotate on its axis (rotation/revolution)
4.____sun centered theory of the solar system (astronomers)
5.____when did the universe begin (big bang)
Do Now
1._____type of eclipse that occurs when the moon cast a shadow on the Earth (eclipse)
2.____the direction that the moon revolves around the Earth (moon phases)
3.____length of time it takes the Earth to revolve around the sun (rot/rev)
4.____a dense massive ball of gases exploded and the universe began (big bang)
5.____has seasons, polar ice caps, deserts, and windstorms like Earth (planets)
Do Now
1._____type of eclipse that occurs when the moon cast a shadow on the Earth
2.____phase of the moon that is after waxing gibbous
3.____forms from a collapsing nebula
4.____closest planet to the sun
5.____sun centered theory of the solar system
Do Now
Investigation 17B
• How big is the solar system?
Solar System
17.2 The planets• The planets are commonly
classified in two groups. • The terrestrial planets
include Mercury, Venus, Earth, and Mars.
• The gas giants include Jupiter, Saturn, Uranus, and Neptune.
17.2 Mercury• closest to sun• Smallest• Craters • Flat plains• Facing sun-hot• Not facing sun-cold• Atmosphere-none• Moons-none• Rot-59 days• Rev-88 days
17.2 Venus• Hottest planet• Earth’s twin• Phases• Brightest planet• Volcanoes• Atmosphere-thick made
of carbon dioxide• Moons-none• Rot-243 days• Rev-225 days
17.2 Earth• Liquid water• Life• Called the Blue Planet• Seasons• Atmosphere-78%
nitrogen, 21% oxygen, 1%t trace gases
• Moons-1 (Luna)• Rot-24 hours• Rev-365 ¼ days
17.2 Mars• Called the Red Planet• Polar ice caps• Seasons• volcanoes, deserts,
wind storms, craters• Atmosphere-thin and
made of carbon dioxide
• Moons-2• Rot-24 hours• Rev-687 days
17.2 Jupiter
• Largest planet• Great Red
Spot( storm system(• Has rings• Atmosphere-made of
hydrogen and helium• Moons-63• Rot-10 hours• Rev-11.9 years
17.2 Saturn• 2nd largest planet• Largest set of rings
(made of rocks and ice)
• Called Jewel Planet• Atmosphere-made of
hydrogen and helium• Moons-60• Rot-10.7 hours• Rev-29.5 years
17.2 Uranus• Rotates-backwards from
top to bottom • Thin rings• Blue green disk• Atmosphere-made of
hydrogen and helium• Moons-27• Rot-18 hours• Rev-84 years
17.2 Neptune• Farthest planet from the
sun• Set of narrow rings• Great Dark Spot (storm
system)• has rings• Atmosphere-made of
hydrogen and helium• Moons13• Rot-16 hours• Rev-165 years
17.2 Comparing the planets