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# TOC: The Nine Planets & Other Space Objects 12/8/12 - PowerPoint PPT Presentation

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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• 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

• Inner Planets: Terrestrial Planets

• Outer Planets: Gas Giants

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

• 1 Rotation = 1 complete spin = 1 day

• Mercury

• Venus

• Earth

• Mars

• 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

• 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

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

• 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

• 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

• 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

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

• 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

• 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

• 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

• 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

• Complete and glue in your foldable into this section.

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

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