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WorksheetsSolar System and Moon Formation
Total questions: 38
Worksheet time: 20mins
Scientists believe the solar system began as a cloud of dust, gasses and ice that was forced together by a supernova. This is an example of
The Death Star Theory
The Big Bang Theory
The Nebular Theory
The Orion Theory
A large asteroid belt appears in our solar system where?
Between Saturn and Uranus
Between the sun and Mercury
Between Mars and Jupiter
Between Tatooine and Dagobah
Comets are large chunks of rock and ice that....
Travel in a straight line
Destroy planets
Orbit the sun
Originate in other galaxies
A meteoriod becomes a meteor by...
Acquiring more materials as it travels
Entering earth's atmosphere and beginning to burn
Striking a planet
growing in size
The theory that says the moon is a sister world that formed in orbit around Earth at the same time as the Earth formed is called...
The Accretion Theory
The Big Bang Theory
The Attrition Theory
The Nebular Theory
The theory of moon formation that says the Moon was somewhere in space, and was captured into orbit around Earth is the ...
Net Theory
Bell Theory
Moon Capture Theory
Accretion Theory
The theory that says early Earth spun so fast that it spun off a chunk that became the moon.
Fission Theory
Fusion Theory
Nuclear Theory
Chunk Theory
A large body crashed into the earth, causing debris that formed the moon.
The comet theory
The meteor theory
The asteroid theory
the giant impact hypothesis
If a meteoroid is a rocky space fragment, then what is it called after it hits the ground?
Asteroid
Comet
Meteor
Meteorite
What do we call an icy remnant of the Solar System's formation?
Asteroid
Comet
Meteoroid
Moon
The density of gas in a collapsing interstellar cloud is low at first, but ____________________draws matter together until it is concentrated enough to form a star and possibly planets.
space
mass
gravity
dust
The rotating disk surrounding the young Sun became our
moon
planet
comet
solar system
Space objects built of solid particles that can form planets through collisions and mergers are called
comets
asteroids
planetesimals
Select all that apply
Which are true about the terrestrial planets?
They formed by the merging of planetesimals in the inner part of the main disk.
They are composed of elements that did not vaporize.
They formed by the merging of icy planetesimals near the outer part of the main disk.
They are rocky and dense.
How old is the solar system?
4.6 billion years old
4.6 million years old
6 million years old
13.7 billion years old
What FORCE caused the cloud to flatten into a planetary disc?
magnetism
gravity
adhesion
surface tension
Before the planets were formed, __________ appeared in the spinning disc.
meteors and meteoroids
planetesimals and protoplanets
comets and asteroids
dwarf planets and moons
What is this?
planetary disc
protoplanet
protosun
nebulary cloud
The theory that explains how the solar system was formed is known as:
The solar nebula theory
The big bang theory
The theory of gravity
The solar eclipse theory
The outer planets include Saturn, Jupiter, Uranus, and Neptune. They are called the _______________.
Ringed Planets
Gas Giants
Ice Giants
Peripheral planets
Earth is included among Mercury, Venus, and Mars in the inner, or ____________ planets.
Echelon
Peripheral
Celestial
Terrestrial
The belt of icy bodies that exists outside of Neptune's orbit is called...
The exoplanets
The Kuiper Belt
The Icy Belt
The Orion Nebula
Comets are large chunks of rock and ice that....
Travel in a straight line
Destroy planets
Orbit the sun
Originate in other galaxies
The theory that says the moon is a sister world that formed in orbit around Earth at the same time as the Earth formed is called...
The Accretion Theory
The Big Bang Theory
The Attrition Theory
The Nebular Theory
The theory of moon formation that says the Moon was somewhere in space, and was captured into orbit around Earth is the ...
Net Theory
Bell Theory
Moon Capture Theory
Accretion Theory
The theory that says early Earth spun so fast that it spun off a chunk that became the moon.
Fission Theory
Fusion Theory
Nuclear Theory
Chunk Theory
A large body crashed into the earth, causing debris that formed the moon.
The comet theory
The meteor theory
The asteroid theory
the giant impact hypothesis
Match the following
Gravity causing dust and gas to condense
A solar nebula.
A cloud of dust and gas (nebula)
Planetesimals/debris continue to collide
Accretion of debris to form planetesimal
On tectonically inactive bodies like the Moon and Mercury, craters from the ___ ___ ___ are clearly visible.
Late Light Bombardment
Late Heavy Bombardment
Early Heavy Bombardment
On Time Bobardment
At just over 4.6 _____ years ago the early solar system began to resemble what we see today.
million
billion
trillion
what's bigger than a trillion?
Our moon was created by ______.
Azgardians like Thor and Heimdahl
little green men
clumping of matter near the early Earth
a collision between the early Earth and another protoplanet
The hot, dense center of a collapsing gas cloud (before a star forms) is called a ____.
prestar
priorstar
protostar
protonstar
Nebulae are primarily composed of what two elements?
