

Exploring the Universe: Galaxies, Dark Matter, and Alien Life
Flashcard
•
Social Studies
•
5th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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10 questions
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1.
FLASHCARD QUESTION
Front
What did Edwin Hubble discover in 1924?
Back
Other galaxies beyond the Milky Way
2.
FLASHCARD QUESTION
Front
What is at the center of most galaxies?
Back
A supermassive black hole
3.
FLASHCARD QUESTION
Front
What role does dark matter play in the universe?
Back
It helps in the formation and structure of galaxies
4.
FLASHCARD QUESTION
Front
What is dark energy believed to do to the universe?
Back
Accelerate the universe's expansion
5.
FLASHCARD QUESTION
Front
According to the Drake equation, what is likely to exist in our galaxy?
Back
Millions of intelligent civilizations
6.
FLASHCARD QUESTION
Front
Why might aliens be interested in Earth? Options: Aliens want to conquer Earth, It is the only planet with water, Earth has the most advanced technology, Because of its unique location in the universe
Back
Because of its unique location in the universe
7.
FLASHCARD QUESTION
Front
What is the Fermi Paradox?
Back
The paradox of aliens not making contact despite the high probability of their existence
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