Technology ppt
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Transcript of Technology ppt
Mr. Brian Fredrich
3rd Grade Science
OVERVIEW
Made up of 8 orbiting planets
Moons
Comets
Asteroids
Minor planets
Dust and gas
S
U
N
• Largest object in our Solar System
• All matter revolves around sun
• Sun makes up 98% of all matter in our solar system
Mercury
Small, Rocky Planet
Mariner 10 spacecraft
has visited and mapped about
half of planet
Possible volcanic activity
No moons!
Venus
Covered by thick layer
of sulfuric acid clouds
Been visited 20 times
Too hot for rain to form
Earth
Supports a variety of life
Core of earth is hotter
than surface of Sun!
Densest body in solar
system
Mars
Cold and lifeless
Dry ice on both poles
Dust storms blow
through planet for months
Two tiny orbiting moons
very close to its surface
Jupiter
Giant gaseous planet
90% Hyrdrogen
10% Helium
1000 X bigger than
Earth
16 known moons
Saturn
Giant gaseous planet
75% Hydrogen
25% Helium
Rings are made of water
ice – origins are unknown
Would float in h20
18 known moons
Uranus
Gas, rock, and ice
Visited only once- in ’86
Spins right side up
15 known moons
Neptune
Gas, ice, and rock
Visited only once- in ‘89
Occasionally crosses
behind Pluto during orbit
8 known moons
Reference
http://www.kidsastronomy.com/our_sun.
htm
http://kids.nineplanets.org/intro.htm
http://www.rense.com/general72/size.ht
m