Big Bang Theory & Life Cycle of Stars

Most scientists believe the Big Bang Theory explains which of the following questions?

• How our planets and moons formed

• How our universe began

• How the sun turns hydrogen into helium

• How fast light travels through space

How old do scientists think the Universe is?

• 13.8 billion years old

• 4.5 billion years old

• 24,000 years old

• 5 years old

How is the "Big Bang" described?

• an explosion

• an expansion

• a contraction

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

How does Cosmic Microwave Background Radiation support the Big Bang Theory?

• Microwaves are found everywhere in the universe.

• Microwaves occurred at the time of the Big Bang

• Microwaves are useful in our everyday lives

What does the Big Bang theory suggest?

• The universe was just there

• The Milky Way is the only solar system

• The universe is continually expanding

• The universe is collapsing in toward a single point

Why is the light from distant galaxies red-shifted?

• They produce more red light than nearby galaxies

• They are moving away from us

• The longer wavelengths are filtered out more by dust

• They are moving toward us

The three pieces of evidence for our current theory of the universe are:

• blueshift, CMB, moon landing.

• redshift, IBM, Andromeda galaxy.

• redshift, CMB, distribution of elements.

• doppler effect, light spectra, fusion.

The CMB is:

• the remaining energy from the big bang.

• incredibly hot.

• visible to the human eye.

• only located in certain places in the universe.

What were the original two elements in our universe?

• Lithium and Carbon

• Hydrogen and Neon

• Helium and Chlorine

• Hydrogen and Helium