Front

What is the Big Bang Theory?

Back

The Big Bang Theory is a scientific explanation that suggests the universe formed from a huge explosion that sent all existing matter flying outward from a single point.

Tags

NGSS.HS-ESS1-2

Front

What evidence supports the Big Bang Theory?

Back

The expansion of the universe is a key piece of evidence that supports the Big Bang Theory.

Tags

NGSS.HS-ESS1-2

Front

What do we observe about galaxies that supports the Big Bang Theory?

Back

All galaxies appear to be moving away from all other galaxies, indicating that the universe is expanding.

Tags

NGSS.HS-ESS1-2

Front

What were the original two elements in the universe?

Back

The original two elements in the universe were Helium and Hydrogen.

Front

What is the significance of the universe's temperature being relatively the same in all locations?

Back

This uniform temperature supports the idea that the universe has expanded from a hot, dense state.

Tags

NGSS.HS-ESS1-2

Front

What is the name of the scientific theory that explains how the universe was created?

Back

The Big Bang Theory.

Tags

NGSS.HS-ESS1-2

Front

What does the term 'expansion of the universe' mean?

Back

It refers to the observation that galaxies are moving away from each other, indicating that the universe is growing larger over time.

Front

What is cosmic microwave background radiation?

Back

It is the afterglow radiation from the Big Bang, providing evidence of the universe's hot, dense beginnings.

Tags

NGSS.HS-ESS1-2

Front

What is the role of gravity in the formation of the universe?

Back

Gravity helps to pull matter together, leading to the formation of stars, galaxies, and other structures in the universe.

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

Front

What is a light-year?

Back

A light-year is the distance that light travels in one year, used to measure vast distances in space.