Brainpop! Big Bang

How is a theory different from a guess? Choose the best answer.

• A theory cannot be disproven; a guess can be

• A theory is backed up by hard evidence; a guess is not

• A theory is agreed upon by scientists; a guess is only agreed on by laypeople

• A theory is usually very old; a guess is usually very new

Where is the center of the universe located?

• There is no center of the universe. b. c. d.

• At the center of the Milky Way galaxy.

• 14.5 billion light years away from Earth.

• In a large singularity near the Andromeda Galaxy.

Which word best describes a singularity?

• large

• cold

• dense

• flammable

What was contained in the singularity that gave rise to the Big Bang? Choose the best answer.

• Gamma rays

• Electrons in a highly excited state

• One atom of every known element in our universe

• All the mass, energy, and time in our universe

Tags

NGSS.HS-ESS1-2

Which term best describes conditions a few seconds after the Big Bang took place?

• frigid

• scorching

• liquid

• placid

Tags

NGSS.HS-ESS1-2

What do the initial moments after the Big Bang have in common with the universe as it exists now? Choose the best answer.

• All the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang.

• The universe back then could not sustain life, and it cannot sustain life now.

• The universe was extremely hot then, and it is still extremely hot now.

• The universe began expanding then, and it is still expanding today.

Tags

NGSS.HS-ESS1-2

What does the Big Bang theory suggest?

• The universe was just there

• .he Milky Way is the only solar system

• The universe is continually expanding

• he universe started as a point and is moving towards each other

Tags

NGSS.HS-ESS1-2

What happens if you reverse the galaxy motion and go back in time?

• Everything would still be where it is today

• ome things would remain, some would have moved back

• Nobody has a clue

• verything must have been condensed into one extremely dense point

Tags

NGSS.HS-ESS1-2

According to the Big Bang theory, how old is the universe?

• 6,000 years

• 65 million years

• 4.5 billion years

• 14.5 billion years

Tags

NGSS.HS-ESS1-2

What is one major piece of evidence that the Big Bang theory is correct?

• Astronomers have detected leftover radiation from the Big Bang

• Everything in the universe has remained in the same location for billions of years

• Astronomers have discovered that the universe is no longer expanding

• Astronomers have discovered evidence that the universe will soon begin contracting in a "Big Crunch"

Tags

NGSS.HS-ESS1-2