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Unit 3 (Stars & Chemical Elements) Review Flashcards | StudBud
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Unit 3 (Stars & Chemical Elements) Review
Unit 3 (Stars & Chemical Elements) Review
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1
What is the heaviest element that can be created by fusion in a star’s core? (think metal)
carbon
iron
silver
oxygen
2
Antoine Lavoisier is best known for...
losing his life during the French revolution
being a taxcollector and a scientist in his spare time
redefining an element as a substance that cannot be broken down further
creating a system of elements based on Earth, Wind, Water, Fire
3
Who is known as the "Father of modern chemistry" for changing how people viewed elements?
Mendeleev
Lavoisier
Curie
Aristotle
4
T/F. Without star stuff (elements), there would be no planets, no life nor any history as we know it.
False
True
5
Who was the eccentric Russian scientist is credited for created the periodic table?
Albert Einstein
Antoine Lavoisier
Dmitri Mendeleev
Marie Curie
6
Where did most of the elements of the periodic table come from?
They came from dying supernovae.
They came from protons fusing to make elements.
They came from dying fusion stars.
They came from the Big Bang.
7
What feature of Dmitri Mendeleev’s periodic table of elements proved to be most impressive and useful?
It included the noble gasses (such as helium and neon)
It was three-dimensional, more like a globe
He left specific gaps for elements that had not yet been discovered
It used numbers and words to fully but efficiently describe each element
8
Why is the formation of stars an important threshold in Big History?
Stars rid the Universe of dark matter.
Stars created cosmic microwave background radiation (CMBR).
Stars created the “hot spots” necessary for further complexity.
Stars exploded during the Big Bang.
9
T/F. Rising complexity is one of the unifying themes in Big History.
True
False
10
How can different perspectives pave the way for progres?
All of the above
Changing how you do things, always changes friendships
Different POV's lead to stagnation
New ideas can lead to new solutions
11
What are the Goldilocks Conditions for new chemical elements?
All of the above
Very high temperatures and dying stars
Gravity and Matter
Hydrogen and Helium
12
What was the result of the first stars dying?
They exploded as supernovae.
They spread hydrogen and helium across the Universe.
They created new chemical elements.
They ran out of hydrogen fuel.
13
What pulled together the hydrogen and helium atoms found in space not long after the Big Bang?
Matter
Supernova
Gravity
High Temperatures
14
In what form do both low-mass and high-mass stars begin and end their life cycles?
White Dwarf
Black Hole
Red Giant
Nebulae
15
Who was known as a philosopher of science, viewing elements as natural wonders?
Lavoisier
Aristotle
Mendeleev
All of the above
16
What do astronomers call the period of time before the emergence of stars in our Universe?
The Dark Ages
The Big Bang
The Middle Ages
The Empty Era
17
Which stars live longer?
High Mass
Neutron Star
Low Mass
Supernova
18
Approximately, how far across (in light years) is our Milky Way galaxy?
5,000
50,000
10,000
100,000
19
How is the Universe organized, from smallest unit to largest?
Stars, solar systems, galaxies, clusters, superclusters
Solar systems, stars, clusters, superclusters, galaxies
Solar systems, stars, galaxies, clusters, superclusters
Stars, clusters, superclusters, solar systems, galaxies
20
What is the aftermath of a supernova explosion?
Not much happened.
A huge cloud of dust and element particles are created.
Hydrogen and helium are sent out into the Universe.
New stars as bright as a galaxy are formed.
21
Which of the following best describes the state of the Universe before the formation of stars?
Tiny and Simple
Hot and Complex
Dark and Simple
Hot and Cold
22
What did the Universe look like after Threshold 2?
All the stars were supernovae.
It had lots of stars, but it was mostly cold, dark, and empty.
The Universe had carbon, oxygen, and iron in abundance.
The Earth was formed at this time
23
T/F. Simply looking into the sky is an act of investigating history.
True
False
