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Q 1/20
Score 0
The most important factor in determining how long a star will live (from birth to death) is its...
30
mass.
elemental composition.
number of planets.
distance from other stars in the galaxy.
Q 2/20
Score 0
Elements heavier than iron...
30
were created during the Big Bang.
are created by nuclear reactions in stars like the Sun.
can only be created in a lab.
are created in the supernova explosions of high-mass stars.
20 questions
Q.
The most important factor in determining how long a star will live (from birth to death) is its...
1
30 sec
Q.
Elements heavier than iron...
2
30 sec
Q.
Planets are believed to form...
3
30 sec
Q.
Where did the heavy elements that make up the bulk of Earth originate?
4
30 sec
Q.
What is thought to be the age of the eight planets in our solar system relative to each other?
5
30 sec
Q.
The planets in our solar system are thought to have come from...
6
30 sec
Q.
Imagine you are searching for dense and rocky planets in a newly discovered planetary system. Based on what you know about our solar system, where would you most likely find this type of planet?
7
30 sec
Q.
Meteorites can be used to determine the age of the solar system because they contain...
8
30 sec
Q.
What evidence or observable patterns in the solar system today support the solar nebula condensation theory?
9
30 sec
Q.
The inner terrestrial planets (Mercury, Venus, Earth, and Mars) have few moons if any, but the outer Jovian planets (Jupiter, Saturn, Uranus, and Neptune) have extensive moon systems. Why might this be?
10
30 sec
Q.
How did the solar nebula change in shape as it collapsed?
11
30 sec
Q.
According to the condensation theory, what are the major phases of solar system formation?
12
30 sec
Q.
Where did the heavy elements that make up the planets come from?
13
30 sec
Q.
In the context of solar system formation, what are asteroids and comets?
14
30 sec
Q.
All elements formed at about the same time right after the “Big Bang.” (True or False)
15
30 sec
Q.
Elements heavier than iron are made in supernova explosions, that “recycle” these elements back into space when the supernova occurs. (True or False)
16
30 sec
Q.
What produces the energy that causes stars to shine?
17
30 sec
Q.
How do heavy elements, such as those found in Earth’s crust, form?
18
30 sec
Q.
How does the age of the Sun compare to the age of the universe? (The universe is estimated to be about 13.7 billion years old.)
19
30 sec
Q.
What happens when a star such as our Sun starts to use up all its "fuel"?
