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Solar System 6-8th Grade Flashcards | StudBud
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Solar System 6-8th Grade
Solar System 6-8th Grade
24 terms
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StudBud Administration
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sun and solar system, review for 8th grade state test
Flashcards
24 cards
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Practice quiz
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Questions
24
Answers
1
Which planet used to be the 9th planet but is now a "dwarf planet?"
Mars
Mercury
Pluto
Neptune
2
Which planet is called "Earth's evil twin" because of similar size, but poison atmosphere?
Neptune
Mars
Mercury
Venus
3
Which planet has the most moons (more than 60)?
Saturn
Uranus
Mars
Jupiter
4
The sun contains what percentage of the
mass
in the solar system?
70%
99%
90%
80%
5
Complete the following -- layers : Earth as _____ : Sun
gases
solid surface
Milky Way galaxy
zero gravity
6
Which of these planets is closest to the Sun?
Jupiter
Earth
Venus
Mars
7
How many of Earth's days does it take for Earth's moon to
revolve
once?
about 1
about 14
about 12
about 28
8
What is found between the inner planets and the outer planets?
Moon belt
lost helium balloons
Kuiper belt
Asteroid belt
9
How many days does it take for Earth to
rotate
once?
24
365
1
28
10
Which of these planets has the longest revolution around the sun? (longest year)
Earth
Jupiter
Saturn
Mars
11
What force keeps planets in orbit around the Sun?
gravity
magnetism
inertia
air pressure
12
Which planet is famous for its ring system?
Mars
Saturn
Jupiter
Uranus
13
What is the fourth planet from the sun?
Mars
Venus
Mercury
Earth
14
What do scientists call the time it takes for a planet to complete one orbit around the Sun?
day
lunar cycle
ellipse
year
15
Which of these is NOT in orbit around our sun?
stars
meteors
planets
comets
16
Right now Earth's sun is about halfway through its life. It should last another ...
10 billion years
5 billion years
5 million years
10 million years
17
How many days does it take for Earth to
revolve
once?
1
365
28
24
18
Which shape best shows the orbit of Earth around the Sun?
rhombus
square
circle
triangle
19
Which planets have fluid (frozen gases) composition?
Jupiter, Saturn, Neptune, Uranus
Mercury, Venus, Earth, Mars
Mercury, Mars, Saturn, Uranus
Mercury, Mars, Jupiter, Neptune
20
The sun gives Earth
much
more energy than all the other stars because it is ...
hotter than the other stars
more luminous than the other stars
closer than the other stars
larger than the other stars
21
Which planets have rocky composition?
Mercury, Mars, Saturn, Uranus
Mercury, Venus, Earth, Mars
Mercury, Mars, Jupiter, Neptune
Mars, Earth, Jupiter, Saturn
22
Compared to other stars, the sun's size is ...
somewhat small
very small
medium size
very large
23
Compared to other stars, the sun's luminosity is ...
dimmer than most stars
medium brightness
brighter than many stars
brighter than most stars
24
How many of Earth's days does it take for Earth's moon to
rotate
once?
about 1
about 28
about 14
about 12
