.......... are huge spherical areas where very little matter exists in the universe .

• voids

• clusters

• superclusters

Space and all the matter and energy in it.

• Space

• Solar System 

• Universe

• Sun

Tags

NGSS.HS-ESS1-2

The unknown invisible force or energy which accounts for the biggest percentage of our universe composition is.

• black hole

• dark energy

• ordinary matter

• dark matter

Our theory of the universe was confirmed by the discovery of:

• fusion.

• cosmic microwave background radiation.

• the Andromeda galaxy.

• the Doppler effect.

Tags

NGSS.HS-ESS1-2

An infinitely small, infinitely dense, and infinitely hot point that is believed to have existed before the big bang.

• Singularity

• Antimatter

• Little bang

• condensation nuclei

Tags

NGSS.HS-ESS1-2

What do we call a cluster of stars, dust, gas, and matter?

• a planet

• a star system

• a planetary system

• a galaxy

Tags

NGSS.MS-ESS1-2

What units do we use to measure the distance between galaxies?

• kilometers

• billometers

• light years

• sound years

Which of the following lists the astronomical structures from smallest to largest?

• planetary system, galaxy, universe, planet

• planet, planetary system, galaxy, universe

• universe, planet, galaxy, planetary system

• galaxy, universe, planetary system, planet

The universe includes:

• all the matter known to exist

• all the space that exists

• nearly 200 billion galaxies

• all of the above

What is the largest known structure in the universe?

• A) Galaxy

• B) Supercluster

• C) Cosmic Web

• D) Nebula