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Card 26

Front

how are radio waves produced ?

Back

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Card 27

Front

what are opaque objects ?

Back

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Card 28

Front

what happens when light waves hit opaque objects ?

Back

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Card 29

Front

define transparent objects

Back

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Card 30

Front

define translucent objects

Back

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Card 31

Front

draw diagram to show green and blue filter

Back

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Card 32

Front

define the atmosphere

Back

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Card 33

Front

what holds the gases in the atmosphere ?

Back

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Card 34

Front

what is the earths temperature determined by ?

Back

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Card 35

Front

what happens to most of the outgoing heat from the earth ?

Back

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