The universe and everything

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

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

• Universe

• Galaxy

• Space

A unit of length equal to the distance that light travels through space in one year.

• Leap Year

• Light-Year

• Frequency

A pervasive radiation, also known as cosmic microwave background, seen in every direction that is evidence of the big bang theory

• Primordial Radiation

• Red Shift

• Creation of Atoms

The change in wavelength that allows us to determine if an object if moving toward us or away from us

• Whiteshift and Blueshift

• Redshift and Greenshift

• Redshift and Blueshift

The distribution of energy in wavelengths within a system

• Range

• Spectrum

The explosion of a massive star at the end of its life cycle

• Galaxy

• Milky Way Galaxy

• Supernova

• Universe

All space and the matter space contains

• Universe

• Galaxy

• Super Nova

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 upon 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

• at the center of the Milky Way galaxy

• 14.5 Billion Light away from Earth

• in a large singularity near the Andromeda Galaxy