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Card 6

Front

Estimate the amount of stars in the Milky Way.

Back

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Card 7

Front

What is a light year?

Back

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Card 8

Front

Roughly, how many times larger is the Milky Way's diameter than that of the suns?

Back

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Card 9

Front

What is parallax?

Back

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Card 10

Front

Why do we see stars and galaxies as they were in the past?

Back

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Card 11

Front

What is Red Shift?

Back

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Card 12

Front

What evidence is there to say that the universe is expanding?

Back

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Card 13

Front

Name the process that wears mountains down.

Back

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Card 14

Front

What is Wegeners theory of continental drift?

Back

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Card 15

Front

Why was Wegeners theory rejected at first? Give three reasons.

Back

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