More cards in this set

Card 6

Front

Angle of Incidence = angle of ?

Back

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Card 7

Front

Magnifying glasses use:

Back

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Card 8

Front

A image formed on photographic film is:

Back

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Card 9

Front

Sound is made by:

Back

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Card 10

Front

Humans hear in the range:

Back

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Card 11

Front

Ultrasound is...

Back

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Card 12

Front

Generators:

Back

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Card 13

Front

Transformers change the voltage on:

Back

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Card 14

Front

They work by:

Back

Preview of the front of card 14

Card 15

Front

A second generation star can be detected from:

Back

Preview of the front of card 15