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Comets, Meteors, And Asteroids

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Maddie Kay

on 27 April 2013

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Transcript of Comets, Meteors, And Asteroids

Comets, Meteors, And Asteroids http://seedtofeedme.blogspot.com/2013/03/what-is-difference-between-asteroid-and.html#axzz2QZCjQlce Nucleus:
Center of comet
Ice and dust
Releases a cloud of dust and gas when heated Coma:
Around nucleus
Gas Gas Tail:
Straight Comets Asteroids Both Meteors Both All Both http://nfo.edu/astro/comet.htm Space Debris:
Extraterrestrial material
Most are as tiny as a grain of sand Bibliography "What Are Meteors Made Of." Universe Today RSS. N.p., n.d. Web. 27 Apr. 2013.
"Comets." ThinkQuest. Oracle Foundation, n.d. Web. 27 Apr. 2013.
"Asteroids, Comets, and Meteoroids." ThinkQuest. Oracle Foundation, n.d. Web. 27 Apr. 2013.
"Interesting Facts About Comets." Universe Today RSS. N.p., n.d. Web. 27 Apr. 2013.
"Deep Impact: Ten Important Comet Facts." Deep Impact: Ten Important Comet Facts. N.p., n.d. Web. 27 Apr. 2013.
"Meteor Facts - All about Meteors." HubPages. N.p., n.d. Web. 27 Apr. 2013.
"Meteoroids." StarChild:. N.p., n.d. Web. 27 Apr. 2013.
"Department of Mineral Sciences." Mineral Sciences. N.p., n.d. Web. 27 Apr. 2013.
"Asteroid Fast Facts." - NASA Jet Propulsion Laboratory. N.p., n.d. Web. 27 Apr. 2013.
"Yeomans' Top Ten Asteroid Factoids." Top Ten Asteroid Factoids. N.p., n.d. Web. 27 Apr. 2013.
"Asteroid Facts for Kids - Asteroid Belt, Earth Impact, Extinction of Dinosaurs." Asteroid Facts for Kids - Asteroid Belt, Earth Impact, Extinction of Dinosaurs. N.p., n.d. Web. 27 Apr. 2013.

Mist, Rosalind. Asteroids, Comets and Meteors. Laguna Hills, CA: QEB Pub., 2008. Print.
Kerrod, Robin. Asteroids, Comets, and Meteors. Minneapolis, MN: Lerner Publications, 2000. Print. http://www.strangeworlds.net/space/how-can-we-keep-tabs-on-asteroids-and-space-junk/ Rock:
Revolves around sun
Metallic Range of sizes/shapes
From space
Can hit earth "Dirty snowballs"
Dry dust and rock
Ice hidden under crust
Orbit around sun
Orbit is elliptical, close to sun - far away
See coma and tail - sun reflects off dust
Sun excites molecules that glow
1 km - 300 km Falling through the atmosphere
Shooting stars
A speck - 10 meters
130,000 mph when enter atmosphere
Oldest rock in the solar system
Millions enter atmosphere Huge meteors
Bigger than ten meters
Orbits the sun
In between Mars and Jupiter
Some times closer to us than the moon
Left over pieces from when the universe was created
Planetoids or minor planets Shooting Stars Shooting stars are meteors
Heat up and glow
Not a star Meteorites What is left of a meteor after hitting earth
100 meteorites hit earth each year
Last HBM (Hit By Meteor) was in 1954
Some of the only evidence about the universe beyond earth
Chemical and physical properties from 4.5 billion years ago Meteoroids Travels around solar system
Fastest - 26 mph
Most size of pebbles
- Pieces of moon
- Pieces of Mars
-Asteroid belt
Smaller than asteroids Meteor Meteoroid Meteorite Similar composition - meteors can be from asteroids
Metal and rock
Mostly rock Asteroids And Comets Meteors And Asteroids Comets And Meteors Orbit around sun
Come from belts:
- Asteroids, Asteroid Belt
- Comets, Kuiper Belt Similar composition - Meteors can be from comets Comet Meteor Asteroid Books: Websites:
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