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Expanding Universe Review

Froggy Jumps

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Test your space science knowledge.

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Expanding Universe Review
 

Froggy Jumps

Expanding Universe ReviewOnline version

Test your space science knowledge.

by MARY CAUSEY
1

What describes the universe's origin as a rapid expansion from a dense, hot singularity about 13.8 billion years ago?

2

Which term refers to the decrease in light wavelength when a celestial object moves toward us?

3

Which remnant radiation left over from the early universe is seen as microwaves?

4

What mysterious force accelerates the universe's expansion and opposes gravity?

5

What is the full range of light waves classified by wavelength called?

6

Which law states galaxy recession velocity is proportional to distance from Earth?

7

What process in the early universe formed light elements like Hydrogen and Helium?

8

What era marks when electrons and protons formed stable hydrogen atoms?

9

Which phenomenon indicates an object is moving away when light shifts toward red?

10

What term means an infinitely small, hot, dense point containing all matter before expansion?

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