The Expanding Universe

Front

What does the Big Bang Theory explain?

Back

The origin of the universe.

Tags

NGSS.HS-ESS1-2

Front

What is one evidence used to support the Big Bang Theory?

Back

Red shift.

Tags

NGSS.HS-ESS1-2

Front

What is the Big Bang Theory?

Back

A theory that states that the universe started in a small mass and then expanded, cooling down the temperature and resulting in the formation of matter, energy, space, and time.

Tags

NGSS.HS-ESS1-2

Front

How would you classify a galaxy that has a spiral shape?

Back

Spiral galaxy.

Front

What happens to the speed of a galaxy as it gets farther away from us?

Back

It is moving faster.

Tags

NGSS.HS-ESS1-2

Front

What is red shift?

Back

The phenomenon where light from distant galaxies shifts to longer wavelengths, indicating they are moving away from us.

Tags

NGSS.HS-ESS1-2

Front

What is the significance of the cosmic microwave background radiation?

Back

It is evidence of the heat left over from the Big Bang, filling the universe.

Tags

NGSS.HS-ESS1-2

Front

What is the observable universe?

Back

The part of the universe that we can see and measure, limited by the speed of light.

Front

What is dark energy?

Back

A mysterious force that is causing the acceleration of the universe's expansion.

Front

What is a galaxy?

Back

A massive system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.