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Asteroids, comets, meteors
Asteroids, comets, meteors
Asteroids, comets, meteors
Asteroids, comets, meteors
Asteroids, comets, meteors
Asteroids, comets, meteors
Asteroids, comets, meteors
Asteroids, comets, meteors
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Asteroids, comets, meteors

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  • http://www.mentalfloss.com/difference/meteor-vs-meteorite-vs-meteoroid/
  • Transcript

    • 1. Asteroids, Comets, and Meteors Oh my! Are you ready? Are you ready to learn all about the craziness that are these celestial objects?! Great! Let’s go!
    • 2. Asteroids  A rocky object revolving around the sun  It is smaller than a planet (this is what makes it different from terrestrial/rocky planets).  They are found between the orbits of Mars and Jupiter in the Asteroid Belt!
    • 3. Comets  A small clump of ice and dust with an extremely elliptical (oval) orbit around the Sun.  As it nears the sun on it’s orbit, the ice sublimates (goes straight from a solid to a gas) and forms the coma and tail.  The comet becomes visible because the gas gets into an excited state and lights up (kind of like neon lights)
    • 4. Hubble details an incredible Comet:  This is a picture of comet 73P breaking up as it is passing by the Sun.  The comet was 1.17 AU from the sun and .22 AU from Earth.  Photo credit: NSA, ESA, STSci
    • 5. Meteors(oids/ites)  Are solid, interplanetary particles passing through Earth’s atmosphere.  These solid objects (usually also rocky) are usually headed towards earth. Depending on their specific location (outside the atmosphere, inside the atmosphere or on the ground) it has a different name.
    • 6. Meteors? Meteorites? Meteoroids? What’s the difference?!?!  The Quick Trick:  - “oids” are outside the atmosphere, - “ites” are inside it, and – “ors” are in between.  Meteoroids outside atmosphere ( meteoroids are in the void of space)  Meteorites on Earth’s surface ( meteorites are in the earth tight)  Meteors are in-between Meteoroids Meteors Meteorites
    • 7. The Life of a Meteor… Please draw something similar to the image on the right in your notes sheet. At each stage, write a short description of what is happening that is making it “change” and label each stage (meteor, meteoroid, meteorite). Atmosphere Earth’s Surface
    • 8. Comets vs. Meteors (what’s the difference?)  If both look like bright streaks of light in the sky, how can you tell the difference?  Comets seemingly hang motionless in the sky whereas meteors quickly streak across the sky (shooting star) and are only seen for a fraction of a second  Comets are millions of miles away, meteors are in our atmosphere.  Comets are orbiting the sun, Meteors are headed towards the Earth’s surface.

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