sound

............................. is the energy that we can hear.

• sound

• light

sound comes from the object that......................

• vibrates

• stays in its place

............................ means to move back and forth very quickly.

• sound

• vibrate

...................... is how high or low a sound is.

• vibrate

• pitch

.......................... is how loud or soft a sound is.

• volume

• sound

The long bar of xylophone make ........................ sound.

• high pitch

• low pitch

The fire engine has a ............... sound.

• soft

• loud

The bird has a ................ sound.

• soft

• loud

every sound doesn't make a vibration ( )

• true

• false

your vocal cords ..................,help you sing& speak.

• don't move

• vibrate