Our Universe

What 2 elements were created during the Big Bang?

• Carbon & hydrogen

• hydrogen & helium

• hydrogen & boron

• helium & neon

What are galaxies made of?

• Many billions of stars

• One star

• 2 stars orbiting each other

• about 100 stars

The farther a star is away from Earth, the more it is _______.

• shrinking

• blueshifted

• redshifted

• expanding

A space probe can only travel 8 light years from Earth, what star cannot be reached?

• Star A

• Star B

• Star C

• Star D

All of the following lends evidence to the expansion of the universe EXCEPT:

• All of the stars outside of our galaxy are moving away from us.

• Light from distant stars is red.

• All the other stars in our galaxy are moving towards each other.

• The farther a star is, the faster it is moving.

What has been happening to the matter in the universe since the Big Bang occurred?

• Matter has been stable and unmoving ever since.

• Matter has moved outward and collected into galaxies.

• Matter has moved from one end of the universe to another.

• Matter is contracting and coming back together again.

Why is the Big Bang an accepted scientific theory?

• Scientists voted on it.

• The telescope helps us see other galaxies.

• There isn't another good explanation.

• Scientists continue to find evidence that supports it.

When did the big bang occur?

• 26.5 billion yrs

• 30 billion yrs

• 10.4 billion yrs

• 14-15 billion yrs

What was the universe like moments after the Big Bang?

• Hot and dense

• Hot and light

• cool and dense

• Hot and big

Which statement describes the Big Bang?

• All matter in the universe expanded from a tiny point.

• All matter appeared in its current location

• Light waves condensed in a single area and matter formed.

• Several galaxies collided and exploded.