Earth Science
Origins of the Universe Quick Check
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Which describes nuclear fusion? (1 point)

A - starts when two atoms slam together, causing the larger atom to split into two smaller atoms
B - starts when a neutron slams into an atom, causing two atoms to form one, heavier atom
C - starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms
D - starts when two atoms slam together to form one, heavier atom

Which describes nuclear fission? (1 point)

A - starts when two atoms slam together, causing the larger atom to split into two smaller atoms
B - starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms
C - starts when a neutron slams into an atom, causing two atoms to form one, heavier atom
D - starts when two atoms slam together to form one, heavier atom

What does the evidence supporting the Big Bang theory assume about the universe when it began? Select the two correct answers. (1 point)

A - It was composed of ice.
B - It was very tiny.
C - It was contracting
D - It was extremely hot.

Answers

Answered by GuitarGivingBack
1. What describes Nuclear Fusion?
(starts when two atoms slam together to form one, heavier atom)

2. What does the evidence supporting the Big Bang theory assume about the universe when it began? Select the two correct answers. (1 point)
(it was very tiny - it was extremely hot)

3. What describes Nuclear Fission?
(starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms)

100% right. Make sure you pay attention for f(i)ssion and f(u)sion. Fission is when something breaks apart, fusion is when something combines. B)
Answered by Shush. I'm a bush!
Thank you GuitarGivingBack.
Although that was in 2021...Glad that it could help 8th-grade students. ^^
Answered by Domie Clover
{Q1}Which describes nuclear fission?
B. Starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms.
{Q2}What does the evidence supporting the Big Bang theory assume about the universe when it began? Select the two correct answers.
B. It was very tiny.
D. It was extremely hot.
{Q3}Which describes nuclear fusion?
C. Starts when two atoms slam together to form one, heavier atom
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