In this lesson you will learn about the
following from the Utah State core:
•Explain how meteorite impacts could that
contribute to the extinction of a species.
•Explain evidence supporting the theory of
impacts causing large-scale extinctions in the
A piece of rock, smaller than a
planet, that orbits the sun;
mostly between Mars and
Jupiter in an area called the
If an asteroid impacts a planet or moon
it is called a meteorite.
The one mile wide Barringer Crater in
Arizona was created by a 150 foot
wide meteorite that impacted Earth
50,000 years ago.
Large impacts of meteors or comets
can dramatically affect climate
worldwide due to sunlight being
blocked out for long periods of time.
Why is there no crater?
Impact was at a low angle, much like
skipping a rock on water.
A Meteorite “Fender-Bender”
In 1992 a 27 pound meteorite
smashed into this car.
Comet West (1976)
A mass of frozen gases, dust,
and rock particles that often
develop a bright tail when it
passes near the sun.
Comet Hyakutake (1996)
A comets tail
away from the
sun due to solar
tail will be out
in front of the
comet as it’s
What happens to the size
of a comet each time it
passes by the sun?
It gets smaller in size as it
melts and forms a tail.
Halley’s Comet (The last time
Halley’s Comet was seen was in
1986. It is due back again
Comet Hale-Bopp on March 8, 1997
ASTEROID = Chunk of rock in space
that orbits sun.
METEOR = Asteroid that has entered a
METEORITE = Meteor that has
impacted a planet.
What is a
A meteor burning
up in our