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Formation Of The Earth And Our Solar System
Test Description: Unit 3 Assessment
Instructions: Answer all questions to get your test result.
1) What do all of the inner planets have in common?
A
They all are small and have rocky surface.
B
They all have many moons.
C
They all have abundant liquid water.
D
They all have rings.
2) What shape are the orbits of most comets?
A
spherical
B
nearly circular ellipses
C
circles
D
long, narrow ellipses
3) The asteroid belt is located
A
between Saturn and Uranus.
B
between Earth and Mars.
C
between Mars and Jupiter.
D
between Jupiter and Saturn.
4) Meteoroids usually come from
A
the solar wind.
B
comets or asteroids.
C
debris from other planets.
D
meteorites.
5) When a meteoroid enters Earth’s atmosphere, it produces a streak of light called a(n)
A
meteor.
B
comet.
C
meteorite.
D
asteroid.
6) Venus and Earth are much alike in terms of
A
their rates of rotation.
B
their direction of rotation.
C
their size and density.
D
their atmospheres.
7) Saturn’s rings are made up mostly of
A
nitrogen and helium.
B
chunks of ice and rock.
C
volcanic dust particles.
D
ice and water vapor.
8) Uranus is different from most other planets because it
A
is mostly nitrogen and helium.
B
is the farthest from the Sun.
C
rotates on its side.
D
has the most moons.
9) Which planet by itself contains the majority of mass of all the planets?
A
Saturn
B
Earth
C
Jupiter
D
Venus
10) What is true about solar system densities?
A
Planetary density increases with increasing distance from the Sun.
B
Saturn has the same density as water.
C
The denser planets lie closer to the Sun.
D
The asteroids all have about the same density.
*select an answer for all questions
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