SOUND

Sounds are made by something that .....

• jumps

• vibrates

The to-and-fro motion pushes on the air to create a....

• dream

• sound wave

The wave travels away from the vibrating source in all ....

• directions

• houses

Sounds can travels through.....

• gasoline, liquids and solids

• gases, liquids and solids

It's made by a large vibration....

• A loud sound

• A soft sound

It's made by a small vibration.....

• A soft sound

• A loud soft

Unwanted sounds that spoil the environment are called .....

• sound pollution

• traffic pollution

The loudness of a sound is measured in .......

• decibels

• sounds

Sounds louder than 100 decibels can damage your ......

• hearing

• sight

These are sources of sound

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