Brief History of the Universe

Which element was formed first?

• Hydrogen

• Helium

• Lithium

• Carbon

Match the description to the term:

• 4.5 billion years old

• The approximate age of the Universe

• 12.8 billion years old

• The approximate age of our Sun

• 13.8 billion years old

• The approximate age of the Milky Way Galaxy

• 4.6 billion years old

• The approximate age of the Earth and the Moon

Tags

NGSS.HS-ESS1-6

NGSS.HS-ESS1-1

In relation to us (from Earth's perspective), most galaxies are:

• Moving toward us

• Moving away from us

• Not moving

Tags

NGSS.HS-ESS1-2

The universe is (select all that apply):

• all of space

• all of time

• all of reality

• mostly empty space

• almost completely full of dust and gases

What formed within minutes of the Big Bang?

• all the stars, galaxies, and planets that exist today

• all of the celestial bodies (stars, planets, etc.) and life that exists today

• it was too hot to form anything for millions of years

• quarks and then atoms

Tags

NGSS.HS-ESS1-2

Put the items in order from the first thing to exist to the most recent thing:

• Singularity

• Matter

• Energy

• Light

Tags

NGSS.HS-ESS1-2

Which statements best describe the big bang (select all that apply)?

• The universe started as a singularity

• The universe exploded into existence

• The universe was unstable as a singularity and began to expand

• The universe is still expanding today

• The universe started entirely as energy

Tags

NGSS.HS-ESS1-2

Inside a singularity we find what type of conditions (select all that apply)?

• Infinite (extremely high) density

• Infinite (extremely high) heat

• An infinitesimally small diameter
• Infinitely low (extremely low) temperatures

• Infinitely low (extremely low) energy

What is the universe made up of (chose the best answer)?

• energy
• matter (and dark matter)

• space

• everything

• time

What are stars mainly made of?

• Solid particles

• Liquid particles

• Plasma

• Gas particles