Structure of the Universe & Origin Theories (Standard 1a.)

The universe has existed for approximately

• 13.7 light-years

• 13.7 billion years

• 13.7 thousand years

• 13.7 million

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NGSS.HS-ESS1-2

Evidence shows that interstellar bodies are moving away from Earth, some faster than others, which BEST suggests that the universe

• is shrinking.

• is expanding.

• was not formed by a big bang.

• has always been the same size.

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NGSS.HS-ESS1-2

According to the Big Bang Theory, the universe is __________________.

• constant

• expanding

• exploding

• depleting

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NGSS.HS-ESS1-2

Which theory do scientists believe MOST LIKELY explains the creation of the universe?

• Red Shift Theory

• Big Bang Theory

• Butterfly Effect Theory

• Radiation Theory

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NGSS.HS-ESS1-2

Over time, scientists have changed their model of our solar system. It has transitioned from

• a Sun-centered to a Moon-centered model.

• a Moon-centered to an Earth-centered model.

• an Earth-centered to a Sun-centered model.

• a Sun-centered to an Earth-centered model.

Many years ago, people believed that the Earth was the center of the solar system because from Earth, it looks as if the stars and the Sun

• are much smaller than the Earth.

• move more quickly than the Earth.

• are controlled by the Earth.

• revolve around the Earth.

Scientists believe that the universe is expanding. Which theory about the creation of the universe BEST supports this belief?

• Big Bang Theory

• Creation Theory

• Bouncing Universe Theory

• Protouniverse Theory

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NGSS.HS-ESS1-2

The raw materials that formed the solar system were MOST LIKELY

• hydrogen gas and dust.

• oxygen gas and ice particles.

• asteroids and water vapor.

• gamma radiation and ice particles.

In this illustration, the rings around the Sun represent

• dust particles.

• radiation.

• orbits.

• sun rays.

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NGSS.HS-ESS1-4

Scientists who believe in solar nebular theory believe that the formation of the solar system began around

• 4.6 million years ago.

• 37 billion years ago

• 4.6 billion years ago.

• 37 million years ago.