The Big Bang Theory is the most widely accepted theory about the origin of the universe.

• true

• false

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NGSS.HS-ESS1-2

Which description is considered most accurate regarding what actually happened during the Big Bang?

• Two galaxies collided causing an immense explosion as stars crashed into one another

• All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.

• All matter emerged from a massive black hole at the center of the universe.

• Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.

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NGSS.HS-ESS1-2

If something that makes light is moving away from you, it spreads the wavelengths of light out. This application of the Doppler effect is known as ___.

• blue shift

• green shift

• red shift

• black shift

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NGSS.HS-ESS1-2

A date that is commonly accepted by Big Bang theorists for the Big Bang is ____ years ago.

• One hundred thousand

• Two hundred and fifty million

• Thirteen point seven billion

• Ten trillion

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NGSS.HS-ESS1-2

Most distant galaxies show a red shift. This is considered evidence that the universe is ___.

• getting cooler

• expanding

• condensing into a small point

• swirling around

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NGSS.HS-ESS1-2

A galaxy showing blue shift is ___.

• very cold

• moving towards us

• dying

• about to supernova

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NGSS.HS-ESS1-2

Big Bang theorists believe that most matter should be complex, large atoms, like gold and plutonium.

• true

• false

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NGSS.HS-ESS1-2

Observations of space indicate that most matter in the universe is ___.

• hydrogen, helium, and dark matter

• gold and plutonium

• oxygen and water vapor

• carbon

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NGSS.HS-ESS1-2

Big Bang theorists believe that there should be energy left over from the Big Bang, and it should be in the form of ___.

• low level microwave energy

• extreme heat

• a swirling vortex

• visible light

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NGSS.HS-ESS1-2

What instrument has allowed us to look deep into space to observe things far away that give us hints to the past?

• The Hubble telescope

• The Eiffel Tower

• Binkley's barometer

• The Smith Space Balloon