WorksheetsSolar System 4th Grade
Total questions: 25
Worksheet time: 26mins
Name
Class
Date
1.
What shape of the moon is when you can see more than half on the lit side, but not all of it?
a)
full moon
b)
gibbous
c)
crescent
d)
new moon
2.
Earth and the other planets closest to the Sun are made mostly of _______
a)
gas
b)
metal
c)
water
d)
rock
3.
Earth's ________ on its axis causes day and night.
a)
rotation
b)
revolution
c)
phase
d)
comet
4.
One complete orbit of Earth moving around the sun takes one year. This is called
a)
revolution
b)
rotation
c)
mare
d)
umbra
5.
The path on object takes as it moves around another object is called
a)
revolution
b)
rotation
c)
orbit
d)
mare
6.
Where does the moon get its light?
a)
sun
b)
planets
c)
other stars
d)
itself
7.
In this portion of the lunar phases the moon appears to be shrinking
a)
waning
b)
waxing
c)
umbra
d)
penumbra
8.
In this portion of the lunar phases the moon appears to be growing
a)
waxing
b)
waning
c)
umbra
d)
penumbra
9.
How long does it take for the Earth to revolve around the sun?
a)
24 hours
b)
one month
c)
365 days
d)
two years
10.
How long does it take for the Earth to rotate one complete time?
a)
24 hours
b)
28 days
c)
1 month
d)
365 days
11.
Which phase of the moon shows an entire circle reflected by the sun?
a)
New
b)
Full Moon
c)
Waxing Crescent
d)
Waning Crescent
12.
Almost Earth’s twin in size and mass, this planet has very thick atmosphere.
a)
Venus
b)
Mars
c)
Mercury
d)
Neptune
13.
This is the largest planet in the solar system.
a)
Saturn
b)
Jupiter
c)
Uranus
d)
Venus
14.
This is the smallest planet in the solar system
a)
Mercury
b)
Venus
c)
Earth
d)
Mars
15.
Only planet known to have life
a)
Earth
b)
Mars
c)
Venus
d)
Mercury
16.
The earth orbits around...
a)
the sun.
b)
the moon
c)
other planets
d)
the Milky Way
17.
What are the reasons for the seasons?
a)
Earth's tilt and rotation.
b)
Earth's rotation and revolution.
c)
Earth's tilt and revolution.
d)
Earth's tilt and resolution
18.
The order of the planets is:
a)
Mars,Venus,Earth,
Mercury,Saturn
Jupiter, Uranus, Neptune
Mercury,Saturn
Jupiter, Uranus, Neptune
b)
Earth,Venus,Mars
Jupiter, Neptune,
Mercury,Saturn,
Uranus
Jupiter, Neptune,
Mercury,Saturn,
Uranus
c)
Mercury,Venus,Earth
Mars,Jupiter,
Saturn,Uranus
Neptune
Mars,Jupiter,
Saturn,Uranus
Neptune
d)
Mars, Venus, Mercury, Jupiter, Earth, Saturn, Neptune, Uranus
19.
What are most outer planets made up of?
a)
Rock
b)
Hydrogen and Water
c)
Gas (Helium and Hydrogen)
d)
Clouds of Acidic Rain
20.
About how many days does it take to moon to go through a complete cycle?
a)
7 days
b)
365 days
c)
29 days
d)
20 days
21.
The earth's axis is
a)
straight
b)
round
c)
tilted
22.
Which phase of the moon can you see less than half of the lit side, but not all is gone?
a)
crescent
b)
new moon
c)
full moon
d)
gibbous
23.
The part of the earth receiving the sun's most direct rays is having
a)
spring
b)
fall
c)
winter
d)
summer
24.
How old is the sun?
a)
400 million years
b)
460,000 years
c)
4 1/2 billion years
d)
40 billion years
25.
The sun is an averaged sized star?
a)
True
b)
False
100 %
