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15. To describe hearing ranges and ultrasound

Year 9 Science Light and Sound 15. To describe hearing ranges and ultrasound

In this lesson we will explain what is meant by 'hearing range' and how this differs with age and in different animals, measure the loudness of common sounds using appropriate units and describe what is meant by ultrasound and state some uses of it.

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Year 9 Science

15. To describe hearing ranges and ultrasound

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