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Difference between revisions of "Ultrasound"

(Created page with "==Key Stage 3== ===Meaning=== Ultrasound is sound that has a frequency higher than 20,000Hz. ===About Ultrasound===")
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Revision as of 19:38, 20 October 2018

Key Stage 3

Meaning

Ultrasound is sound that has a frequency higher than 20,000Hz.

About Ultrasound