Big Bang 1 - Heidi Cooley | Biblioteka

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The Big Bang Theory explains which of the following?

How our planets and moons formed

How the sun turns hydrogen into helium

How our universe began

How fast light travels through space

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It is shrinking

It is expanding

It is staying the same size

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Galaxies are moving away from each other

Galaxies are moving toward each other

Galaxies are getting bigger

Galaxies are getting smaller

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Microwaves are found everywhere in the universe

Microwaves are useful in our everyday lives

Microwaves occurred at the time of the big bang

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Hydrogen and carbon

Hydrogen and oxygen

Carbon and helium

Hydrogen and helium