When an object vibrates, it moves
back and forth quickly
up and down slowly
Sound energy is made when
objects vibrate
objects stop moving
Pitch tells us
how bright or dark a color is
how high or low a sound is
Big vibrations make
loud sounds
soft sounds
The meow of a cat is an example of a
soft sound
loud sound
The roar of a lion is an example of a
loud sound
soft sound
The part of our body that helps us hear sounds is the
eardrum
eyeball
When the bells on an alarm clock ring, they
move back and forth quickly
stay still and quiet
Small vibrations make
soft sounds
loud sounds
You can make your voice
loud or soft
only soft
When something vibrates, it makes
no change in the air
the air around it vibrate too
The guitar makes sound when
its strings stay still
its strings vibrate
Sound is a type of
energy that is heard when objects vibrate
light that we can see
A whisper has
less energy than a shout
more energy than a shout
Messages from your ear to your brain
make light for you to see
tell you what sound you heard
Light is a kind of energy that
lets us hear
lets us see