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Match it! Select the correct answer from the pull down...Good luck!
What were the first elements created 100 seconds after the Big Bang?
gravity
apparent
4.6
galaxy
hydrogen and helium
200
nothing
protostar
How many billions of years old is the sun?
gravity
apparent
4.6
galaxy
hydrogen and helium
200
nothing
protostar
What is the brightness of a star called when seen from Earth's surface?
gravity
apparent
4.6
galaxy
hydrogen and helium
200
nothing
protostar
What is a huge group of stars, star systems, star clusters, and nebulae?
gravity
apparent
4.6
galaxy
hydrogen and helium
200
nothing
protostar
The Big Bang Theory is evidence that the universe exploded 14 billion years ago out of?
gravity
apparent
4.6
galaxy
hydrogen and helium
200
nothing
protostar
What is the earliest stage in a star's life?
gravity
apparent
4.6
galaxy
hydrogen and helium
200
nothing
protostar
How many billions of years do scientist believe the smallest stars will live to be?
gravity
apparent
4.6
galaxy
hydrogen and helium
200
nothing
protostar
What was the first force created by the universe which attracts all objects toward each other?
gravity
apparent
4.6
galaxy
hydrogen and helium
200
nothing
protostar
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