Science · Topic 96 of 124
Ultrasound
⭐ MasteredUltrasound is sound with a frequency too high for humans to hear. Doctors use it to see inside the body, and some animals, like bats and dolphins, use it to find their way.
💡 Fun fact
Ultrasound scans help doctors look at babies growing inside the mother without using radiation.
All about Ultrasound
Ultrasound is sound with a frequency too high for humans to hear. Doctors use ultrasound scanners to look inside the body, for example to see a baby growing before it is born. The sound waves bounce off tissues and create a picture.
Some animals use ultrasound to find their way. Bats and dolphins send out high-pitched sounds and listen for the echoes to locate food and obstacles.
🎮 Try it yourself!
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