Evidence of the Big Bang

A theory that says the universe began as a small point that expanded rapidly about 13.7 billion years ago.

• Big Bang Theory

• Singularity Theory

• Galaxy Theory

The Big Bang Theory states that all matter started as a small volume and then...

• expanded in all directions

• contracted even smaller

• caused an atomic explosion

• burned up and exploded

What is Cosmic MIcrowave Background

• Microwave radiation from the Big Bang

• Visible light from the stars

• Gamma radiation from the Big Bang

• Matter that has gravity but no light

What do we observe when stars/galaxies are moving away from us?

• Cosmic Background Radiation

• Blueshift

• Nothing

• Redshift

What is the Doppler Effect?

• A change in frequency due to the relative motion of a wave source and an observer

• When a wave overlaps with another wave

• When a wave bounces off of another object

• When a wave bends due to traveling through a different medium

A large grouping of stars, planets, gas, and dust in space held together by gravity.

• Universe

• Galaxy

• Space

What is happening to the Universe to this day?

• The universe is getting smaller and hotter.

• The universe is staying the same.

• The universe is getting cooler and bigger.

As part of The Big Bang Theory of the formation of the Universe, scientists believe that over time, the universe is continually changing in what characteristic?

• From more dense to less dense.

• From rotating to stationary.

• From cooler to hotter.

• From very large to very small.

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 moments after the Big Bang

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

• the universe is extremely hot then, and it is still extremely hot now

• the universe began expanding then, and it is still expanding now

What is the name of our home galaxy?

• The Snickers

• The Milky Way

• The Twix

• The Baby Ruth