U4 USA Science

The big bang theory states that the universe is approximately _________.

Which number best completes the sentence?

• 14 thousand years old

• 14 million years old

• 14 billion years old

• 14 trillion years old

Tags

NGSS.HS-ESS1-2

Because the universe is expanding, what happens to light from other galaxies as it reaches Earth?

• It is brighter.

• It is dimmer.

• It is blue shifted.

• It is red shifted.

Tags

NGSS.HS-ESS1-2

Which statement tells a result of the big bang?

• Galaxies are moving closer.

• Galaxies are moving farther away.

• Galaxies are stationary.

• Galaxies are moving randomly.

Tags

NGSS.HS-ESS1-2

A cloud of dust and gas in space is a(n) ___________.

Which term best completes the sentence?

• asteroid

• nebula

• galaxy

• solar system

Which pair of elements primarily make up a nebula?

• hydrogen and oxygen

• hydrogen and helium

• helium and oxygen

• carbon and oxygen

The solar system formed from _____________.

Which phrase best completes the sentence?

• preexisting planets

• comets

• black hole

• clouds of dust and gas

Alpha Centuri is 4 light years from Earth.

How long would it take for light from Alpha Centuri to reach Earth?

• 4 Earth years

• 4 Earth months

• 4 Earth weeks

• 4 Earth days

A light year is equal to _____________.

Which figure best completes the sentence?

• 5.866 miles

• 5,866 miles

• 5,866,000 miles

• 5,866,000,000,000 miles

What separates Mars from Jupiter?

• sun

• Milky Way Galaxy

• asteroid belt

• black hole

Which factor causes the seasons?

• rotation of Earth's axis

• the tilt of Earth's axis with respect to the sun

• the appearance of the moon

• an eclipse

Tags

NGSS.MS-ESS1-1