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Science 9 Unit 9 Solar System Flashcards | StudBud
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Science 9 Unit 9 Solar System
Science 9 Unit 9 Solar System
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Solar system, planets, comets, meteors, meteorites, meteoroids
Flashcards
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Questions
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Answers
1
A cloud of gases around the solid portion of a comet is known as
coma
tail
core
nucleus
2
A small piece of rock that enters Earth's atmosphere and burns up
meteor
meteorite
meteoroid
comet
3
The most obvious difference between the terrestrial and Jovian planets is
orbital velocity
length of day
size
color
4
The solid portion of the comet is the
nucleus
coma
tail
core
5
Which planet is considered Earth's "twin"?
Earth
Mercury
Mars
Venus
6
The relatively small, rocky bodies found between Mars and Jupiter are known as
comets
satellites
meteors
Asteroids
7
Which is the biggest planet?
Pluto
Venus
Jupiter
Saturn
8
The planet with the most complex ring system is
Saturn
Jupiter
Uranus
Neptune
9
Which of the following is NOT a terrestrial planet
Jupiter
Mars
Mercury
Earth
10
Which planets are made of the densest elements?
gas planets
inner planets
largest planets
Jupiter and Saturn
11
What are small solid particles moving through space?
planetesimals
meteoroids
comets
asteroids
12
Small irregular shaped bodies formed from colliding matter are
comets
planetesimals
asteroids
meteors
13
A meteoroid that actually strikes Earth's surface.
comet
meteor shower
meteorite
meteoroid
14
Which of the following is NOT considered part of the solar system?
the sun
galaxies
Jovian planets
terrestrial planets
15
Which of the following is NOT a Jovian planet?
Saturn
Neptune
Pluto
Uranus
16
Which planet rotates on its side?
Earth
Neptune
Saturn
Uranus
17
A comet's tail always points
down
Toward the sun
away from the sun
sideways
18
Most of the mass of the solar system is
the sun
Jupiter
asteroids
the inner planets
19
The asteroid belt is located between
Mars and Jupiter
Earth and Mars
Jupiter and Saturn
Saturn and Uranus
20
The formation of the solar system from a huge cloud of dust and gas is called the
protoplanet theory
nebular theory
solar theory
planetesimal thory
21
Which of the following does not have rings?
Saturn
Jupiter
Mars
Uranus
22
Which planet has a cratered surface like Earth's moon?
Mercury
Mars
Venus
Earth
23
Which is the smallest planet?
Mars
Mercury
Earth
Venus
24
Which planet is 1 AU from the sun?
Mercury
Venus
Mars
Earth
