Structure of the Universe

What includes all matter and space that exists?

• the solar system

• the universe

• the galaxy

• our sun

How old is the universe believed to be?

• 13,000 years old

• 13 million years old

• 13 billion years old

• 130,000 years old

Do we know exactly how big the universe is?

• yes

• nope

What is a vacuum?

• a space where there is lots of matter

• a space where no matter exists at all

• a space where stars and galaxies collide

• a space right at the edge of a black hole

About how big do we think our universe is, based on current evidence?

• 10 million miles diameter

• 10 billion light years in diameter

• 10 billion miles in diameter

• 10 light years in diameter

How many STARS approximately are there in the universe?

• trillions

• millions

• thousands

• a few dozen

What is a cluster of stars, dust, gas and matter?

• the universe

• the gym after prom

• a galaxy

• a planetary system

How do we classify the size of a galaxy?

• how large it is across

• how much it weighs

• how many stars there are inside of it

• how big the center black hole is

Scientist believe that there are approximately 200 billion ______ in the known universe.

• planets

• stars

• galaxies

• universes

What is between different galaxies in the universe?

• dust and matter

• nothing. just space.

• a rainbow bridge

• rings like around saturn