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Solar System
Solar System
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4th Grade Solar System Unit Review
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
What color determines that it is the hottest?
blue
orange
white
red
2
Which planet has the shortest year?
Earth
Mercury
Mars
Uranus
3
Which planet has the longest year?
Saturn
Neptune
Venus
Earth
4
What are objects that circle other objects, such as moons?
telescope
galaxy
star
satellite
5
The tilt of the earth on its axis as it revolvesaround the sun causes ________.
day/night
changing moon phases
the seasons
satellites
6
What is a huge system of gases, dust, and stars?
planet
star
galaxy
revolution
7
What causes day and night which makes the sun appear to rise in theeast and set in the west?
Earth's orbit
Earth's revolution
Earth's rotation
8
Howlong does it take for earth to complete one
rotation
?
12 hours
52 weeks
365 days
24 hours
9
To orbit around something is called _____________.
a revolution
a day
a rotation
10
What is a path around an object?
rotation
satellite
axis
orbit
11
What is a group of objects that orbit a star in the center andincludes that star?
solar system
satellite
galaxy
constellation
12
What is a large object that orbits a star?
galaxy
axis
solar system
planet
13
What is the object that floats in space and takes pictures ofstars and planets?
Hubble Planetarium
Hubble Microscope
Hubble Camera
Hubble Space Telescope
14
How long does it take for earth to complete one
revolution
?
12 hours
24 hours
365 days
12 weeks
15
What causes the sun to appear to rise and set in thesky?
Rotation of Earth
The moon
Other planets' orbit
Earth's orbit
16
Thesun is mostly made of
_____ and ________.
hydrogen oxygen
helium & oxygen
helium & hydrogen
silver & hydrogen
17
What color star determines that it is the coolest?
yellow
red
blue
orange
18
What is an imaginary line that extends through both poles of aplanet
planet
axis
orbit
rotation
19
How long does it take the moon to orbit the earth andgo through all of the phases?
about 7 days
about 29 days
about 24 hours
about one year
20
What does a star’s color tell us about the star?
how hot it is
how old it is
how close it is
how large it is
21
What is a group of stars in the sky that make imaginarypictures called?
Star
Satellite
Constellation
Galaxy
