Components of the Universe 8.8 Review Game

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What are the main types of galaxies?

Back

The main types of galaxies are spiral galaxies, elliptical galaxies, and irregular galaxies.

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What is the hottest type of star?

Back

The hottest type of star is a Blue Star.

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Where is the sun located in the Milky Way galaxy?

Back

The sun is a medium yellow star located approximately 2/3 of the way down one of the galaxy's spiral arms.

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What percentage of stars are in the Main Sequence on the HR Diagram?

Back

About 90% of all stars are in the Main Sequence.

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What is the generally accepted theory about the beginning of the universe?

Back

The generally accepted theory about the beginning of the universe is the Big Bang.

Front

What is a spiral galaxy?

Back

A spiral galaxy is a type of galaxy characterized by its spiral arms that wind outward from the center.

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What is an elliptical galaxy?

Back

An elliptical galaxy is a type of galaxy that has an ellipsoidal shape and lacks the distinct arms of spiral galaxies.

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What is an irregular galaxy?

Back

An irregular galaxy is a type of galaxy that does not have a distinct regular shape, often appearing chaotic.

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What is the HR Diagram?

Back

The HR Diagram (Hertzsprung-Russell Diagram) is a scatter plot of stars showing the relationship between their absolute magnitudes and stellar classifications.

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What are supergiants?

Back

Supergiants are very large stars that are much brighter than the sun and have a short lifespan.