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Match it! Select the correct answer from the pull down...Good luck!
How many billions of years do scientist believe the smallest stars will live to be?
nothing
expand
galaxy
size
hydrogen and helium
200
gravity
apparent
Astronomer's think that in the future the universe will continue to?
nothing
expand
galaxy
size
hydrogen and helium
200
gravity
apparent
The Big Bang Theory is evidence that the universe exploded 14 billion years ago out of?
nothing
expand
galaxy
size
hydrogen and helium
200
gravity
apparent
What is a huge group of stars, star systems, star clusters, and nebulae?
nothing
expand
galaxy
size
hydrogen and helium
200
gravity
apparent
How long a star lives depends on it's?
nothing
expand
galaxy
size
hydrogen and helium
200
gravity
apparent
What is the brightness of a star called when seen from Earth's surface?
nothing
expand
galaxy
size
hydrogen and helium
200
gravity
apparent
What were the first elements created 100 seconds after the Big Bang?
nothing
expand
galaxy
size
hydrogen and helium
200
gravity
apparent
What was the first force created by the universe which attracts all objects toward each other?
nothing
expand
galaxy
size
hydrogen and helium
200
gravity
apparent
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