Big Bang Timeline

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What created the Universe?

• Singularity Event

• Double Impaction

• Triple K Event

It took _______ after the singularity event for hydrogen and helium to begin forming.

• 3 seconds

• 3 minutes

• 10,000 years

The basic forces of gravity, electromagnestism, neutrinos, electrons, photons and quarks formed because of the ​ (a)   expansion and ​ (b)   of the Universe.

• slow
• cooling
• fast
• heating

__________________ produced building blocks for other elements beyond helium and hydrogen.

• Gravity

• Nucleosynthesis

• Radiation

About 300,000 years after the singularity event matter and energy equalize forming ______.

• atoms

• magnetism

• gravity

The first stars and galaxies formed _________ after the singularity event.

• 300,000 years

• 8,700,000 years

• 300,000,000 years

________ billion years passed between the formation of the Sun and the Earth.

• 5

• 0.5

• 17.9

According to the Big Bang Timeline, how old is our universe?

• 4.6 million years

• 8.7 billion years

• 13.7 million years