Sound 4/amplify

Cotton wool muffles sound

• True

• False

You can make a sound louder with an amplifier

• True

• False

amplifier

• an electronic device to increase the volume of sound

• equipment that makes sounds quieter

muffle

• to make bigger

• to decrease the volume and make sounds less clear

amplify

• to make bigger

• to decrease the volume

silencer

• padded protection for your ears against very loud sounds

• equipment that makes sounds quieter

noise pollution

• a mixture of solid particles and gases in the air

• unwanted or disturbing sound

quiet sound

• whisper

• thunder

• traffic

padded protection for your ears against very loud sounds

• silencer

• ear defenders

• amplifier

an electronic device that people talk into or sing into to make their voice louder

• loudspeaker

• amplifier

• microphone