1. Planets, meteoroids, and comets orbit the sun.

True
False

2. Micrometeorites are so common they can be found rainwater.

True
False

3. The orbits of comets cannot be predicted.

True
False

4. Comets and asteroids orbit the sun in a circular orbit.

True
False

5. Some meteorites come from Mars.

True
False

6. What planet did comet Shoemaker-Levy 9 impact?

Mars
Earth
Venus
Jupiter

7. Why are there fewer craters on the surface of the Earth than on the moon?

Earth's atmosphere causes meteoroids to burn up.
Earth's destructive forces erode craters.
Volcanic eruptions cover up craters.
All of the above.

8. Which of the following are often called shooting stars?

Meteors
Asteroids
Meteorites
Planets

9. Which of the following hits the surface of the Earth?

Meteor
Meteoroid
Meteorite
All of the above

10. Comets orbit the sun with very elongated:

Elliptical orbits.
Circular orbits.
Dust tails.
None of the above.

Your score is out of 10.