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Chapter 27

Total questions: 22

Worksheet time: 14mins

Name
Class
Date
1.
The _______ is between the orbits of Mars and Jupiter. 
a)
Oort Cloud
b)
Asteroid belt
c)
Kuiper belt
d)
Photosphere
2.
Which outer planets have rings?
a)
Just Saturn
b)
Saturn and Jupiter
c)
Jupiter, Neptune, and Saturn
d)
All 4 of them
3.
What is true about the inner planets?
a)
They are smaller, denser, and rocky.
b)
They are made of gas.
c)
They have many moons.
d)
They have rings.
4.
What is known about the outer planets?
a)
They are smaller.
b)
They are made of rock.
c)
They are larger, have many moons, and are made of gas.
d)
They have no rings.
5.
The _____ is found right after Neptune's orbit. It contains dwarf planets and other small icy bodies.
a)
Meteroid belt
b)
Kuiper Belt
c)
Oort Cloud
d)
Asteroid Belt
6.
Which factor makes Earth different from all the other planets in the solar system in its ability to support life? 
a)
The Earth is exposed to rays from the sun. 
b)
The Earth has only one moon that orbits around it. 
c)
The Earth rotates in an elliptical orbit around the sun. 
d)
The Earth has a breathable atmosphere. 
7.
Earth's early oceans became salty when
a)
dissolved solids were carried from land to the water.
b)
salt dropped down from the sky.
c)
organisms died and added salt to the water.
d)
when they were first formed.
8.
A small body that orbits a planet is a(n)
a)
comet
b)
moon
c)
asteroid
d)
exoplanet
9.
Objects that circle stars other than Earth's sun are
a)
moons
b)
exoplanets
c)
rings
d)
planetesimals
10.
Which of these planets is most similar to Uranus in terms of size and mass?
a)
Pluto
b)
Earth
c)
Jupiter
d)
Neptune
11.
Kepler's first law states that planets orbit the sun in paths called
a)
ellipses
b)
circles
c)
epicycles
d)
periods
12.
The Earth formed a crust, mantle, and core in a process called ______________.
a)
outgassing
b)
ellipses
c)
differentiation
d)
dispersing
13.
Uranus' axis ______________.
a)
moves like the other planets'.
b)
is perpendicular to its orbit.
c)
is parallel to its orbit.
d)
causes it to do flips.
14.
The atmosphere of the Earth was formed in a process known as __________________.
a)
outgassing
b)
dispersing
c)
ellipses
d)
differentiation
15.
A rotating cloud of gas and dust from which the solar system was formed is a(n) _________________.
a)
constellation
b)
Kuiper Belt
c)
solar nebula
d)
asteroid belt
16.
The iron and magnesium rich layer of the Earth is the ________________.
a)
crust
b)
mantle
c)
inner core
d)
outer core
17.
Planets were formed from small bodies in the early formation of the solar system called _____________.
a)
comets
b)
asteroids
c)
exoplanets
d)
planetesimals
18.
_____________ proposed the heliocentric theory.
a)
Ptolemy
b)
Copernicus
c)
Kepler
d)
Caesar
19.
Planets are celestial bodies that orbit the sun, have cleared an area around their orbit, and are _____________.
a)
round
b)
covered in clouds
c)
have moons
d)
are made of rock
20.
________________ were formed when planetesimals joined together.
a)
Asteroids
b)
Moons
c)
Protoplanets
d)
Comets
21.
The sun, planets, comets, and asteroids that revolve around the sun all make up the ______________.
a)
galaxy
b)
constellations
c)
Kuiper Belt
d)
solar system
22.
_____________ has the solar system's strongest winds and was identified mathematically before it was spotted. 
a)
Mars
b)
Neptune
c)
Jupiter
d)
Uranus