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Asteroids, Meteoroids, Comets And Planets
Test Description: Review the differences between asteroids, meteoroids, comets and planets!
Instructions: Answer all questions to get your test result.
1) Which of the objects below orbit the sun?
A
All of these objects orbit the sun
B
planets
C
asteroids
D
comets
2) Most of the asteroids in the solar system can be found...
A
Out beyond Pluto
B
Orbiting around Saturn as its rings
C
Super close to the sun
D
In between Mars and Jupiter
3) What are the differences between asteroids and planets?
A
Planets orbit around the sun and asteroids do not
B
Planets are larger and shaped like spheres, while asteroids are smaller and not spherical
C
Asteroids are able to hit Earth, and planets are not
D
Planets rotate at a speed much faster than asteroids
4) What is actually a "shooting star"?
A
Stars revolving around the sun
B
Asteroids passing close to Earth
C
Comets streaking by Earth
D
Meteoroids burning up in Earth's atmosphere
5) __________are small pieces of "space junk," _________ are space junk that burns up in Earth's atmosphere, and _________ are space junk that actually reaches Earth's surface
A
meteoroids; meteors; meteorites
B
meteorites; meteors; asteroids
C
asteroids; comets; meteors
D
meteors; meteorites; meteoroids
6) What is the main difference between meteoroids and asteroids?
A
Asteroids are only found in the "belt" between Mars and Jupiter
B
Meteoroids are generally bigger than asteroids
C
Asteroids are pieces of comets, whereas meteoroids are pieces of space debris
D
Asteroids are generally bigger than meteoroids
7) What feature of the moon's surface was most likely created by meteorites?
A
Its maria
B
Its shape
C
Its dust
D
Its craters
8) You're hiking in the Arctic Circle and find a piece of rock. After testing it, you discover that it's from Mars! What's the most likely explanation for how this rock got there?
A
Mars and Earth crashed into each other awhile ago, and Mars left some debris behind
B
A meteoroid came to Earth on a comet
C
The rock broke off from Mars awhile ago and came to Earth as a meteor
D
An alien came and left it on Earth
9) How do we know if a meteor has made contact with Earth's atmosphere?
A
Humans on Earth die
B
We find space rock on the ground
C
It burns up and becomes a "shooting star"
D
A species like the dinosaurs die out
10) What is NOT true about asteroids?
A
Some of them have their own names
B
Some are bigger than Pluto
C
They have an atmosphere
D
Some have their own little "moons"
*select an answer for all questions
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