Asteroids, Comets, and Meteors

Review

AsteroidsComposition (what are

they made of?

Asteroids are rocky worlds.

AsteroidsWhere are asteroids

found?Most asteroids orbit the Sun between Mars and

Jupiter.

AsteroidsWhat are their

shapes?

Asteroids are irregularly shaped.

Asteroids

Asteroids

Dawn’s Virtual Flight Over the Asteroid Vesta.

CometsComposition (what are

they made of?

Water ice, dry ice, rocks, dirt, & gas (a

dirty snowball)

CometsFrom where do comets

start their journey to the Sun?

Orbiting the Sun in the Oort Cloud or Kuiper Belt

CometsKuiper Belt beyond orbit of Neptune to

10,000,000,000 miles

Oort Cloud (6, 000,000,000 miles from Earth!)

CometsParts of a comet.

CometsBright Tails, Black Hearts: Exploration of Comets.

Comet Hale-Bopp.

Meteoroids, Meteors, Meteorites

Composition (what are they made of?

Iron & Rocks

Meteoroids, Meteors, Meteorites

Where are they found?

Orbiting the Sun throughout the Solar

System

Meteoroids, Meteors, Meteorites

What is a meteoroid?

This is what it is called when it is in outer

space.

Meteoroids, Meteors, Meteorites

What is a meteor?

It is when the rock or dirt is traveling through the

atmosphere.

Meteoroids, Meteors, Meteorites

What is a meteor?

It makes a streak in the sky that lasts a couple

of seconds.

Meteoroids, Meteors, Meteorites

What is a meteor?

It is also called a “shooting

star.”

Meteoroids, Meteors, Meteorites

What is a meteorite?

It is when the rock hits

the Earth.

Meteoroids, Meteors, Meteorites

What is a meteorite?If it’s large enough, it can make a

crater.

Meteoroids, Meteors, Meteorites

Spaced Out!