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Card 16

Front

How can you safely observe the Sun?

Back

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Card 17

Front

What are sunspots?

Back

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Card 18

Front

How long is the sunspot cycle?

Back

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Card 19

Front

What do scientists think cause sunspots?

Back

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Card 20

Front

How do we know the Sun doesn't rotate as a solid body?

Back

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Card 21

Front

What is the solar wind?

Back

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Card 22

Front

How long does a lunar month last?

Back

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Card 23

Front

What occurs when the Moon passes between the Earth and the Sun?

Back

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Card 24

Front

What happens when the Earth passes between the Moon and the Sun?

Back

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Card 25

Front

How long is a sidereal day?

Back

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