toc: the nine planets & other space objects 12/8/12 i. starter: calculate the density of an...
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TOC: The Nine Planets & Other Space Objects12/8/12I. 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
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 GiantsJupiter - 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
Terrestrial Gas Giant
Location in the Solar System
Close to Sun Far from Sun
Size (or radius) Small Large
Density Very Dense (sink) Not Dense (float)
Structure Solid Surfaces & Cores
Gassy Surfaces/ Solid Core
Chem Composition Heavy Elements (Metals)
Hydrogen & Helium
Atmosphere Thin Thick
Exterior Warm Cold
Rotation Slow Fast
Moons Few Many
Rings No Yes
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.