Earth Origin & Age of Earth Review

Quiz
•
Social Studies
•
9th Grade
•
Medium
Cris DeWolf
Used 411+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Earth, and the rest of the solar system, formed from a giant cloud of gas and dust in space called a __.
protosun
nebula
galaxy
comet
Answer explanation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As the cloud collapsed, it begin to spin. This spinning caused it to flatten, forming a ___.
protosun
protoplanetary disk
planetesimal
nebula
Answer explanation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As the solar system continued to evolve, material in the disk collided with other material and grew into planetesimals, then protoplanets, and then planets. This process of growth by collision created a lot of heat, melting the early Earth. Growth by collision is called ___.
differentiation
accretion
adsorption
kinetic molecular theory
Answer explanation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Since the early Earth was molten, the most dense material sank to the center forming the core. Less dense material rose towards the surface, forming the crust. This process is known as ___.
differentiation
accretion
adsorption
kinetic molecular theory
Answer explanation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the name for the scientific explanation for the origin of stars and planets?
The accretion hypothesis
The nebular hypothesis
The gravitational collapse hypothesis
The protoplanetary hypothesis
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did students from our school (as part of a collaborative team of students from several school) use the Spitzer Space Telescope to look for signs of star formation in?
The Orion Nebula
The Milky Way
a dark nebula (LDN 981)
Andromeda
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How old is Earth?
4.6 thousand years
4.6 million years
4.6 billion years
4.6 trillion years
Answer explanation
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