(music plays)

Aldo stands next to a wall touch screen showing the logo of the program. He is in her mid-thirties, clean-shaven with short blond hair. He wears glasses and a blue T-shirt with a print that reads "Home Work Zone."

He says HEY THERE,
TVO KIDS!
I'M TEACHER
ALDO, AND TODAY,
WE'RE GOING TO
TALK ABOUT THE
SCIENCE OF
SOUND.
SOUND IS
NOTHING MORE THAN
WAVES TRAVELING
THROUGH THE AIR
AND OUR BODY IS
SPECIALLY DESIGNED
TO MAKE SENSE
OF SOUND,
THROUGH THE
USE OF OUR EARS.
NOW BEHIND
ME,
I HAVE AN
EXAMPLE OF A PERSON
WHO'S ABOUT TO SPEAK
INTO A HUMAN EAR.

A drawing pops up on the screen.

He continues THIS IS A
HUMAN EAR DIVIDED
INTO THREE
SECTIONS -
THE OUTER,
THE MIDDLE AND
THE INNER PART
OF THE EAR.
SO WHEN A
PERSON SPEAKS,
SOUND WAVES COME FROM
THE PERSON'S MOUTH,
AND THEY'RE
REPRESENTED BY WAVES
ON THE SMARTBOARD,

Using a black marker, he draws the waves and continues AND AS THESE WAVES
APPROACH THE
EAR,
THE OUTER EAR
CUPS THE WAVES
AND TAKES THE WAVES
DIRECTLY INTO
THE MIDDLE
PART OF THE EAR.
THERE IN THE MIDDLE
PART OF THE EAR,
THERE ARE
THREE SPECIAL BONES
THAT TAKE THAT SOUND
AND MOVE IT
TOWARDS THE
INNER PART OF THE
EAR AND FROM THE INNER
PART OF THE EAR,
THEY GO THROUGH
WHAT IS CALLED AN
AUDITORY NERVE
TO THE BRAIN,
AND THEN YOUR
BRAIN MAKES SENSE OF
THE SOUND.
SO WHENEVER YOU'RE
LISTENING TO
A SINGING BIRD
OR A BARKING DOG,
REMEMBER, IT'S SOUND
WAVES
INTO YOUR
OUTER EAR,
INTO YOUR
MIDDLE EAR,
INTO YOUR
INNER EAR
AND FINALLY
TO YOUR BRAIN
TO MAKE
SOUNDS.
I'M TEACHER ALDO AND
NOW YOU KNOW!