ScienceAges 4-6

Sound, pitch & vibrations

Explore how vibrations produce sound waves, how pitch and volume change, and how sound travels through media. Review suitability for your learners before teaching.

New variation Try interactive challenge Browse templates

Age band:Ages 4-6 Ages 7-9

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 4-6

Sound, pitch & vibrations

Take your time. Show your thinking.

1. How do bats and dolphins use echolocation (sonar) to find prey in the dark or deep water: they emit high-pitched clicks and time how long the echoes take to bounce back, or they use magnets?
Amplitude (Loudness) · Frequency (Pitch)
2. When you pluck a stretched rubber band or guitar string, what do you see and hear: the string vibrates rapidly and makes a sound, or the string turns into liquid?
Amplitude (Loudness) · Frequency (Pitch)
3. Which thin stretched membrane inside the human ear vibrates when sound waves reach it down the ear canal: the eardrum (tympanic membrane) or the retina?
Amplitude (Loudness) · Frequency (Pitch)
4. What word describes how loud or quiet a sound is: volume (loudness) or pitch?
Amplitude (Loudness) · Frequency (Pitch)
5. When you speak or sing and gently rest your fingers on the front of your throat, what do you feel vibrating inside your voice box (larynx): your vocal cords, or your collarbone?
Amplitude (Loudness) · Frequency (Pitch)
6. Why does a sound become quieter the further away you move from the source: the sound energy spreads out over a larger and larger sphere of air, or the pitch drops to zero?
Amplitude (Loudness) · Frequency (Pitch)
7. On a xylophone or panpipe, which bar or pipe produces the HIGHEST pitch when struck: the shortest bar/pipe (which vibrates fastest), or the longest bar/pipe?
Amplitude (Loudness) · Frequency (Pitch)
8. What is an echo: a sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears, or a brand-new sound made by the rocks?
Amplitude (Loudness) · Frequency (Pitch)
9. Does sound travel fastest through a gas (air), a liquid (water) or a solid (steel): a solid (steel) or a gas (air)?
Amplitude (Loudness) · Frequency (Pitch)
10. How are all sounds produced: by objects vibrating back and forth, or by objects standing completely still?
Amplitude (Loudness) · Frequency (Pitch)
11. If you hit a drum harder so the drum skin vibrates with a larger amplitude, what happens to the sound: the sound gets louder (higher volume), or the pitch changes into a flute?
Amplitude (Loudness) · Frequency (Pitch)
12. Can sound travel through empty outer space (a vacuum where there are no particles): No, because sound needs a medium of particles to vibrate, or Yes, faster than light?
Amplitude (Loudness) · Frequency (Pitch)

12 questions · Seed 55 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 4-6

Sound, pitch & vibrations

Answers and reasoning. Review before teaching.

1. How do bats and dolphins use echolocation (sonar) to find prey in the dark or deep water: they emit high-pitched clicks and time how long the echoes take to bounce back, or they use magnets?
They emit high-pitched clicks and time how long the echoes take to bounce back
The time delay and direction of returning echoes reveal the distance and location of objects.
2. When you pluck a stretched rubber band or guitar string, what do you see and hear: the string vibrates rapidly and makes a sound, or the string turns into liquid?
The string vibrates rapidly and makes a sound
Stopping the vibration of the string immediately stops the sound.
3. Which thin stretched membrane inside the human ear vibrates when sound waves reach it down the ear canal: the eardrum (tympanic membrane) or the retina?
Eardrum (tympanic membrane)
Sound waves cause the eardrum to vibrate, passing vibrations to the three tiny middle-ear bones (ossicles).
4. What word describes how loud or quiet a sound is: volume (loudness) or pitch?
Volume (loudness)
Volume depends on the amplitude (size) of the vibrations.
5. When you speak or sing and gently rest your fingers on the front of your throat, what do you feel vibrating inside your voice box (larynx): your vocal cords, or your collarbone?
Your vocal cords
Air from the lungs passes between the vocal cords in the larynx, making them vibrate to produce your voice.
6. Why does a sound become quieter the further away you move from the source: the sound energy spreads out over a larger and larger sphere of air, or the pitch drops to zero?
The sound energy spreads out over a larger and larger sphere of air
As distance from the source increases, the wave energy is spread over a bigger area, so amplitude decreases.
7. On a xylophone or panpipe, which bar or pipe produces the HIGHEST pitch when struck: the shortest bar/pipe (which vibrates fastest), or the longest bar/pipe?
The shortest bar/pipe (which vibrates fastest)
Shorter, smaller columns or bars vibrate at a higher frequency, giving a higher pitch.
8. What is an echo: a sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears, or a brand-new sound made by the rocks?
A sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears
An echo is a reflected sound wave heard a short time after the original sound.
9. Does sound travel fastest through a gas (air), a liquid (water) or a solid (steel): a solid (steel) or a gas (air)?
A solid (steel)
Particles in a solid are packed closely together with strong bonds, passing vibrations much faster (~5,000 m/s in steel vs ~340 m/s in air).
10. How are all sounds produced: by objects vibrating back and forth, or by objects standing completely still?
By objects vibrating back and forth
Every sound source—such as a plucked guitar string, a drum skin or your vocal cords—vibrates.
11. If you hit a drum harder so the drum skin vibrates with a larger amplitude, what happens to the sound: the sound gets louder (higher volume), or the pitch changes into a flute?
The sound gets louder (higher volume)
Larger amplitude vibrations carry more energy and produce a louder sound.
12. Can sound travel through empty outer space (a vacuum where there are no particles): No, because sound needs a medium of particles to vibrate, or Yes, faster than light?
No, because sound needs a medium of particles to vibrate
Unlike light, sound is a mechanical wave and cannot travel through a vacuum.

12 questions · Seed 55 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 4-6

Sound, pitch & vibrations

Take your time. Show your thinking.

1. How do bats and dolphins use echolocation (sonar) to find prey in the dark or deep water: they emit high-pitched clicks and time how long the echoes take to bounce back, or they use magnets?
Amplitude (Loudness) · Frequency (Pitch)
2. When you pluck a stretched rubber band or guitar string, what do you see and hear: the string vibrates rapidly and makes a sound, or the string turns into liquid?
Amplitude (Loudness) · Frequency (Pitch)
3. Which thin stretched membrane inside the human ear vibrates when sound waves reach it down the ear canal: the eardrum (tympanic membrane) or the retina?
Amplitude (Loudness) · Frequency (Pitch)
4. What word describes how loud or quiet a sound is: volume (loudness) or pitch?
Amplitude (Loudness) · Frequency (Pitch)
5. When you speak or sing and gently rest your fingers on the front of your throat, what do you feel vibrating inside your voice box (larynx): your vocal cords, or your collarbone?
Amplitude (Loudness) · Frequency (Pitch)
6. Why does a sound become quieter the further away you move from the source: the sound energy spreads out over a larger and larger sphere of air, or the pitch drops to zero?
Amplitude (Loudness) · Frequency (Pitch)
7. On a xylophone or panpipe, which bar or pipe produces the HIGHEST pitch when struck: the shortest bar/pipe (which vibrates fastest), or the longest bar/pipe?
Amplitude (Loudness) · Frequency (Pitch)
8. What is an echo: a sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears, or a brand-new sound made by the rocks?
Amplitude (Loudness) · Frequency (Pitch)
9. Does sound travel fastest through a gas (air), a liquid (water) or a solid (steel): a solid (steel) or a gas (air)?
Amplitude (Loudness) · Frequency (Pitch)
10. How are all sounds produced: by objects vibrating back and forth, or by objects standing completely still?
Amplitude (Loudness) · Frequency (Pitch)
11. If you hit a drum harder so the drum skin vibrates with a larger amplitude, what happens to the sound: the sound gets louder (higher volume), or the pitch changes into a flute?
Amplitude (Loudness) · Frequency (Pitch)
12. Can sound travel through empty outer space (a vacuum where there are no particles): No, because sound needs a medium of particles to vibrate, or Yes, faster than light?
Amplitude (Loudness) · Frequency (Pitch)

12 questions · Seed 55 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 4-6

Sound, pitch & vibrations

Answers and reasoning. Review before teaching.

1. How do bats and dolphins use echolocation (sonar) to find prey in the dark or deep water: they emit high-pitched clicks and time how long the echoes take to bounce back, or they use magnets?
They emit high-pitched clicks and time how long the echoes take to bounce back
The time delay and direction of returning echoes reveal the distance and location of objects.
2. When you pluck a stretched rubber band or guitar string, what do you see and hear: the string vibrates rapidly and makes a sound, or the string turns into liquid?
The string vibrates rapidly and makes a sound
Stopping the vibration of the string immediately stops the sound.
3. Which thin stretched membrane inside the human ear vibrates when sound waves reach it down the ear canal: the eardrum (tympanic membrane) or the retina?
Eardrum (tympanic membrane)
Sound waves cause the eardrum to vibrate, passing vibrations to the three tiny middle-ear bones (ossicles).
4. What word describes how loud or quiet a sound is: volume (loudness) or pitch?
Volume (loudness)
Volume depends on the amplitude (size) of the vibrations.
5. When you speak or sing and gently rest your fingers on the front of your throat, what do you feel vibrating inside your voice box (larynx): your vocal cords, or your collarbone?
Your vocal cords
Air from the lungs passes between the vocal cords in the larynx, making them vibrate to produce your voice.
6. Why does a sound become quieter the further away you move from the source: the sound energy spreads out over a larger and larger sphere of air, or the pitch drops to zero?
The sound energy spreads out over a larger and larger sphere of air
As distance from the source increases, the wave energy is spread over a bigger area, so amplitude decreases.
7. On a xylophone or panpipe, which bar or pipe produces the HIGHEST pitch when struck: the shortest bar/pipe (which vibrates fastest), or the longest bar/pipe?
The shortest bar/pipe (which vibrates fastest)
Shorter, smaller columns or bars vibrate at a higher frequency, giving a higher pitch.
8. What is an echo: a sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears, or a brand-new sound made by the rocks?
A sound wave that bounces (reflects) off a hard surface like a cliff or wall and returns to your ears
An echo is a reflected sound wave heard a short time after the original sound.
9. Does sound travel fastest through a gas (air), a liquid (water) or a solid (steel): a solid (steel) or a gas (air)?
A solid (steel)
Particles in a solid are packed closely together with strong bonds, passing vibrations much faster (~5,000 m/s in steel vs ~340 m/s in air).
10. How are all sounds produced: by objects vibrating back and forth, or by objects standing completely still?
By objects vibrating back and forth
Every sound source—such as a plucked guitar string, a drum skin or your vocal cords—vibrates.
11. If you hit a drum harder so the drum skin vibrates with a larger amplitude, what happens to the sound: the sound gets louder (higher volume), or the pitch changes into a flute?
The sound gets louder (higher volume)
Larger amplitude vibrations carry more energy and produce a louder sound.
12. Can sound travel through empty outer space (a vacuum where there are no particles): No, because sound needs a medium of particles to vibrate, or Yes, faster than light?
No, because sound needs a medium of particles to vibrate
Unlike light, sound is a mechanical wave and cannot travel through a vacuum.

12 questions · Seed 55 · Age guidance, not curriculum certification