Earth Science Big Bang Test

What were the two primary gases in the early universe?

• iron and lead

• nitrogen and oxygen

• hydrogen and helium

• carbon and oxygen

If an object is blue-shifted, what can you conclude about its motion?

• It's not moving

• It's moving away

• It's moving closer

What did Hubble discover in the 1920's?

• The universe is expanding

• The universe is getting smaller

• We are one of many earths

How does the redshift of distant galaxies support the Big Bang Theory?

• It doesn't support this theory

• Expansion means we probably started from one point

• Contraction means that we will contract again some day

What does CMB stand for?

• Cosmic Microwave Blast Radiation

• Cosmic Microwave Background Radiation

• Cosmic Mars Background Radiation

How old do scientists think the universe is?

• About 14 billion years old

• 10 million years

• 6,700 years old

Hubble's Law says that...........

• Galaxies farther away are moving slower away

• Galaxies do not move

• Galaxies further away from us are moving faster away

• Galaxies closer to Earth are moving faster away

Which two of these are explanations for the Big Bang Theory?

• The asteroid impact

• Cosmic Background Microwave Radiation

• Blueshift

• Redshift of Galaxies

The microwave _____________ _______________ from deep space is leftover from the Big Bang

• Background Radiation

• Cooks Food

• Background Redshift

• Beautiful Radiation

As it expanded, the universe ______________ and began to slow down.

• Contracted

• Cooled

• Imploded

• Heated