Comets, Asteroids and Meteors

What is the composition of comets?

• Comets are composed of dust and rock mixed with frozen water, methane, and ammonia

• Comets are composed of dust and rock mixed with frozen water, oxygen, and ammonia

• Comets are composed of dust and rock mixed with frozen water, methane, and oxygen

• Comets are composed of dust and rock mixed with frozen oxygen, methane, and ammonia

How are comets considered?

• Comets are considered to be like a large, dirty snowball

• Comets are considered to be like a large, clean snowball

• Comets are considered to be like a short, dirty snowball

• Comets are considered to be like a short, clean snowball

How do comets travel around the sun?

• Comets travel around the sun in square orbits

• Comets travel around the sun in elliptical orbits

• Comets travel around the sun in circle orbits

• Comets travel around the sun in cube orbits

When a comet moves farther away from the sun, the tail...

• Disappears

• Appears

• Evaporates

• Freezes

What is the meteoroid?

• is a space rock that is under the ocean

• is a space rock that burns up in the earth’s atmosphere

  (Shooting Star)

• is a space rock that is still in space

• is a space rock that hits the earth’s surface

What is the meteor?

• is a space rock that is under the ocean

• is a space rock that burns up in the earth’s atmosphere

  (Shooting Star)

• is a space rock that is still in space

• is a space rock that hits the earth’s surface

What is the meteorite?

• is a space rock that is under the ocean

• is a space rock that burns up in the earth’s atmosphere

  (Shooting Star)

• is a space rock that is still in space

• is a space rock that hits the earth’s surface

Which of the following is considered harmless even though it can be viewed from earth at times?

• Meteorite

• Meteor

• Meteoroid

• Asteroid

Which of the following is a piece of rock similar to the material formed into planets?

• Meteorite

• Meteor

• Meteoroid

• Asteroid

Which of the following is smaller than a planet but larger than a meteoroid?

• Meteorite

• Meteor

• Meteoroid

• Asteroid