Structure of the Universe

The universe includes:

• all the matter known to exist

• all the space that exists

• nearly 200 billion galaxies

• all of the above

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

• a planet

• a star system

• a planetary system

• a galaxy

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

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

• The Balloon Theory

• The Big Explosion Theory

• The Big Bang Theory

• The Small Bang Theory

Tags

NGSS.HS-ESS1-2

What existed one second after the Big Bang?

• Hydrogen

• Stars

• Elementary Particles

• Galaxies

Tags

NGSS.HS-ESS1-2

What did the first dying stars create?

• Hydrogen

• Helium

• Heavy Elements

• Both Hydrogen & Helium

Tags

NGSS.HS-ESS1-3

How has the temperature of the universe changed over the past 14 billion years?

• It has increased

• It has decreased

How does the red shift of light emitted by distance stars and galaxies provide evidence for the Big Bang Theory?

• It tells scientists that the universe is shrinking

• It tells scientists that stars and galaxies are moving closer to Earth

• It tells scientists that the universe is expanding

Tags

NGSS.HS-ESS1-2

The universe is mostly:

• Made of stars

• Gas and dust clouds

• Rocky planets, moons, and extraterrestrial objects

• Empty space