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The Formation of Our Solar System
The Formation of Our Solar System
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DE 6-8 Earth and Space Science Techbook Our Solar System The Formation of Our Solar System
Flashcards
23 cards
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Questions
23
Answers
1
The orbits of all planets are ______.
parabolic
rectangular
elliptical
shark-shaped
2
Our ____________________is made up of the planets and their moons all in orbit around the Sun.
solar system
galaxy
universe
milky way
3
Which planets do not have a solid surface?
planet fitness
inner planets
outer planets
red planets
4
In order for a ____ to form, gases in space must come together in a dense, rotating cloud.
satellite
star
ring
asteroid
5
When an object orbits another object, it is said to _______________________.
rotate
spin
sway
revolve
6
What is a supernova?
another word for black hole
a planet in our solar system
the death of a star
a cloud of gas and dust
7
Gases and dust from stars collect in large gas clouds called _______.
nebulae (plural of nebula)
moons
oceans
accretion
8
Which of these planets has the longest orbit?
Mars
Earth
Mercury
Neptune
9
The planet compositions are different depending on how close they are to the ____.
nebula
moon
sun
Earth
10
What is a nebula?
a planet in our solar system
a cloud of gas and dust
the death of a star
a moon
11
Which planet is one of the gas giants?
moon
Coruscant
Earth
Jupiter
12
Which of these planets is solid and rocky?
Neptune
Uranus
Saturn
Venus
13
The solar system formed when a cloud of dust and gas collapsed under its own gravity to form _
nuclear fusion
the sun
comets
the accretion
14
The farther away a planet, the ____ it takes to make a revolution around the sun.
shorter
planet
longer
heavier
15
As particles travel around a newborn star they collide and clump together in a process called _
planetesimalizing
collision
accretion
nuclear fusion
16
Stars are made of _______.
helium and boron
cheese and gravy
hydrogen and helium
hydrogen and gold
17
Gas clouds called _____ provided the raw material that became the first stars.
nuclei
nebulas
planets
accretion
18
The more mass an object has, the greater its _________.
gravitational pull
acceleration
nebulas
spinning
19
Analysis of nitrogen and oxygen show the planets are made of _______.
slightly different materials
greatly different materials
20
The inner planets are __ because this matter condensed at hotter temperatures closer to the sun
hydrogen
gaseous
rocky
carbon
21
Which planets have a longer orbit?
inner peaks
stars
outer planets
inner planets
22
Some of the matter that did not go into making the sun condensed into the ______.
helium
nebula
sonic boom
planets
23
As a protostar gains mass, its gravitational pull ______.
decreases
increases
disappears
explodes
