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TOC: The Nine Planets & Other Space Objects 12/8/12. Starter: Calculate the density of an object that has a volume of 75ml and a mass of 450g. Next, calculate the density of this object if its volume changed to 900. II. Practice: The Nine Planets & Other Space Objects.

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TOC: The Nine Planets & Other Space Objects 12/8/12

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TOC: The Nine Planets & Other Space Objects12/8/12

  • Starter:

    Calculate the density of an object that has a volume of 75ml and a mass of 450g.

    Next, calculate the density of this object if its volume changed to 900.


II. Practice:The Nine Planets & Other Space Objects

  • Write Planets Notes in this section


The Nine Planets & Other Space Objects


Solar System is divided into 2 parts

  • Inner Planets: Terrestrial Planets

  • Outer Planets: Gas Giants


Terms to Remember !!!

  • 1 Revolution = 1 trip around the sun = 1 year

  • 1 Rotation = 1 complete spin = 1 day


Terrestrial Planets

  • Mercury

  • Venus

  • Earth

  • Mars


Terrestrial Planets

  • Mercury - closest to sun

    • Weight 38% of what you weigh on Earth (less gravity)

    • Year – 1 revolution is 88 days long!!!

      (Birthday every 88 days!!!)

    • Day – 1 rotation takes 58 earth days

    • Diameter 4,879 km


  • Venus - Second from sun

    • Weight 91% of what you weigh on Earth (less gravity)

    • Year – 1 revolution is 244 days, 17 hours!!!

    • Day – 1 rotation takes 243 earth days

    • Diameter 12,104 km


  • Earth - third from sun

    • Weight 100% of what you weigh on Earth

    • Year – 1 revolution is 365 days, 6 hours!!!

    • Day – 1 rotation takes 24 hours, 56 minutes

    • Diameter 12,756 km


Mars - fourth from sun

  • Weight 38 % of what you weigh on Earth

  • Year – 1 revolution is 687 days!!!

  • Day – 1 rotation takes 24 hours, 37 minutes

  • Diameter 6794 km


Gass Giants

  • Jupiter

  • Saturn

  • Neptune

  • Uranus


Gas Giants

Jupiter - fifth from sun

  • Weight 236 % of what you weigh on Earth

  • Year – 1 revolution is 11 years, 313 days!!!

  • Day – 1 rotation takes 9 hours, 50 minutes

  • Diameter 142,984 km


Saturn - sixth from sun

  • Weight 92 % of what you weigh on Earth

  • Year – 1 revolution is 29 years, 155 days!!!

    (29 years before you have a birthday!!!!!!!)

  • Day – 1 rotation takes 10 hours, 30 minutes

  • Diameter 120,536 km

  • Rings- made of icy particles


Uranus - seventh from sun

  • Weight 89 % of what you weigh on Earth

  • Year – 1 revolution is 83 years, 274 days!!!

  • Day – 1 rotation takes 17 hours, 14 minutes

  • Diameter 51,118 km


Neptune- eighth from sun

  • Weight 112 % of what you weigh on Earth

  • Year – 1 revolution is 163 years, 263 days!!!

  • Day – 1 rotation takes 16 hours, 7 minutes

  • Diameter 49,528 km


Planet sizes (to scale)

What do you notice at first glance about the difference of terrestrial and gas giants?


Terrestrial Versus Gas Giant


Moons

  • Satellites or natural bodies hat revolve around a larger body

    • All planets have moons except Mercury and Venus

  • Jupiters Moons - Galilean Moons

    • discovered in 1610 by Galileo

      • Io – most volcanic object in solar system

      • Europa - may have liquid water beneath its icy surface

      • Ganymede - largest of the four, larger than Mercury

      • Callisto – third largest moon in solar system, made of rock and ice


  • Comets

    • Small body of ice, rock, and cosmic dust loosely packed together

    • When comet comes close enough to the sun, it heats up and gives off gas and dust in the form of a tail

    • Elliptical orbit around the sun


    Asteroid

    • Small rocky bodies that revolve around the sun

    • Up to 900 km in diameter

    • Mostly spherical

    • Found in between Mars and Jupiter in the Asteroid Belt


    Meteoroid

    • Small rocky boy that revolves around the sun

    • Smaller than asteroids (pieces of asteroids)

    • Becomes a Meteorite when it hits the surface of Earth


    • Shooting Star- Meteors are bright streaks of light that occur when a meteoroid or comet burns in the atmosphere

    • Meteor Showers - when Earth passes through dusty debris that comets leave behind


    III. Application:

    • Complete and glue in your foldable into this section.


    IV. Connection

    • Why is studying other planets important ? How does it help us learn more about our planet?


    V.Exit

    • Summarize everything you learned. Include any questions you may still have.


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