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17.3 Test Review
Test Description: CPO Middle School Earth Science dwarf planets asteroids comets meteors meteorites
Instructions: Answer all questions to get your test result.
1) A “shooting star” is seen when this object enters Earth’s atmosphere and is vaporized.
A
an astroid
B
a planetary satellite
C
a comet
D
a meteor
2) Parts of a comet include all of the following EXCEPT:
A
nucleus
B
halo
C
tail
D
coma
3) The largest asteroid is named:
A
Phobos
B
Eris
C
Pluto
D
Ceres
4) A small chunk of ice and dust that revolves around the sun in a highly elliptical orbit is called a
A
comet
B
astroid
C
planet
D
meteor
5) If a meteor passes through Earth’s atmosphere without burning up it is called a
A
comet
B
meteor
C
meteorite
D
astroid
6) A rocky object orbiting the Sun, too small to be called a planet or dwarf planet, would be called an ____________________.
A
dwarf planet
B
astroid
C
comet
D
meteor
7) What is the difference between a meteor and a meteorite?
A
Meteorites are smaller than meteors
B
Meteorites have gold in them
C
Meteors reaching Earth's surface are called meteorites
D
Meteors fall to Earth.
8) Explain why scientists must carefully set the right speed of a satellite orbiting Earth.
A
So it doesn't crash into the moon.
B
So we get cell phone reception 247
C
Its forward motion (inertia) and the pull of gravity must be balanced to keep it in orbit
D
So it doesn't head into outer space
9) Large objects (such as Mars and Jupiter) that orbit a star belong to a group of objects known as ____________________.
A
terestrial planets
B
planets
C
gas giants
D
solar system
10) It would be difficult to live on the moon because it is missing:
A
all of the above
B
normal temperatures
C
air
D
water
*select an answer for all questions
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