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How Sound Travels: A Vibration Adventure with Echo the Bat

How Sound Travels: A Vibration Adventure with Echo the Bat

Learn how sound travels, from the vibration that makes it to your ear. Tap drums, test a string telephone and watch sounds fade with distance.

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What you'll learn

  • That every sound is made by something vibrating
  • How vibrations pass from particle to particle through a medium like air
  • What the eardrum does and how the brain hears a sound
  • That sound travels through solids, liquids and gases, but not empty space
  • Why sounds get fainter as you move away from the sound source
  • How to compare loudness at different distances using a bar chart

Chapter by chapter

  1. Making sounds: things that vibrate Free to try

    Year 4 science · 1

  2. Vibrations travel through the air to the ear

    Year 4 science · 2

  3. Sound travels through solids, liquids and gases

    Year 4 science · 2

  4. Sounds get fainter further from the source

    Year 4 science · 3

  5. Sound detective quiz (8 questions)

What the chapters cover in the national curriculum in England:

  1. Year 4 science: Identify how sounds are made, associating some of them with something vibrating
  2. Year 4 science: Recognise that vibrations from sounds travel through a medium to the ear
  3. Year 4 science: Recognise that sounds get fainter as the distance from the sound source increases

About this adventure

How Sound Travels is an interactive science game that teaches children aged 7–10 how sounds are made, how they reach the ear and why they get fainter with distance. It follows the Year 4 Sound topic in the national curriculum for England.

Guided by Echo the bat, players tap a drum covered in rice, pluck rubber bands and dip a ringing tuning fork in water to see that every sound comes from something vibrating. They pass a vibration through tiny air particles, learn that the stuff sound travels through is called a medium, and follow the vibration to the eardrum and brain.

Players also send sound through solids and liquids, drag a listener away from a drum to hear it fade, and measure the sound at different distances on a bar chart. A final eight-question quiz checks what they have learned.

Questions and answers

How does sound travel, in simple words?

Sound travels as vibrations passed from particle to particle. When something vibrates, it bumps the air particles next to it, they bump the next ones, and the vibration travels on until it reaches your ear and makes your eardrum vibrate.

Why do sounds get quieter the further away you are?

Sounds get fainter with distance because the vibrations spread out as they travel, so they get weaker. Weaker vibrations make your eardrum vibrate less, so the sound seems quieter. It fades gradually rather than stopping suddenly.

Can sound travel through water and solids?

Yes, sound travels through solids, liquids and gases, because they are all made of particles that can pass on vibrations. Sound moves about four times faster through water than through air, but it cannot travel through empty space, where there are no particles.

What age is this sound game for?

The game is designed for children aged 7 to 10 and matches the Year 4 Sound topic in the national curriculum for England. Spoken narration, short captions and hands-on tasks help younger readers follow along.

What does the game include and how long does it take?

The game has four chapters and an eight-question quiz, and takes about 35 minutes to play through. Each chapter opens and closes with an animated scene, includes hands-on experiments with sound effects, and ends with quick check questions.

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