💡 Hành động âm thanh — Fun Facts

Sound travels about four times faster in water than in air.

Underwater, sounds zoom along much more quickly. That is one way whales can hear each other far away.

The loudest animal is the sperm whale.

Its clicking sounds are louder than a jet plane. The clicks can travel a very long way through the deep sea.

Whispering is talking very, very quietly.

When you whisper, you barely use your voice. It is handy when you want to share a little secret.

A drum makes sound when you tap its tight skin.

Hitting the drum makes the top shake up and down. That shaking pushes the air and makes a big boom.

You hear sounds with your ears.

Your ears catch the tiny wiggles moving through the air. Your brain turns them into the sounds you know.

Sounds are made when things shake, or vibrate.

Every sound starts with something wiggling very fast. The wiggles travel through the air to your ears.

When you clap, your hands hit together to make a sound.

Your palms push the air quickly as they meet. That little burst of air is the clapping sound you hear.