Earth's Place in the Universe

Front

What is an astronomical unit?

Back

The average distance between the Earth and the Sun.

Tags

NGSS.MS-ESS1-3

Front

What is the definition of the universe?

Back

Space and all the matter and energy in it.

Front

What is gravity?

Back

A force between any two objects that pulls them together.

Tags

NGSS.HS-PS2-4

Front

What unit is best to measure the distance to Proxima Centauri?

Back

Light years.

Front

What is a light year?

Back

The distance light travels in one year.

Front

What is the diameter of the sun?

Back

The diameter of the sun is about 1.4 million kilometers.

Tags

NGSS.MS-ESS1-3

Front

What is a galaxy?

Back

A large system of stars, gas, and dust bound together by gravity.

Tags

NGSS.MS-ESS1-2

Front

What is a nebula?

Back

A giant cloud of dust and gas in space, often the birthplace of stars.

Front

What is a black hole?

Back

A region in space where the gravitational pull is so strong that nothing can escape from it.

Tags

NGSS.MS-PS2-4

Front

What is the solar system?

Back

A collection of planets, moons, asteroids, comets, and the sun, bound by gravity.

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3