Planetary nebula

Planetary nebula

Assessment

Interactive Video

Science, Physics

6th - 12th Grade

Hard

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The video explains the life cycle of a large star, focusing on the stage when it exhausts its hydrogen fuel. At this point, the star's outer layers are expelled and ionized, forming a planetary nebula. These nebulae are short-lived in cosmic terms, lasting only tens of thousands of years.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What happens to a star towards the end of its life cycle?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the fate of a star that has used up most of its hydrogen?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the process that occurs when a star's outer layers are ejected.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the radiation from a star's core affect its outer layers?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What are planetary nebulae and how long do they last?

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