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Sound Through Different Mediums
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Sound Through Different Mediums
🎯 WALT: We Are Learning To
Today we are learning to:
- Understand how sound travels through air, water, and solids
- Observe differences in sound transmission through experiments
- Identify factors that affect sound speed and clarity
🔬 Part 1: Our Sound Experiment
1. Complete the table below based on our class experiment:
| Medium | Sound Level (Loud/Soft) | Quality (Clear/Muffled) |
|---|---|---|
| Air | _____________ | _____________ |
| Water | _____________ | _____________ |
| Solid (table) | _____________ | _____________ |
2. Which medium allowed sound to travel fastest?
AirWaterSolid materials
3. Sound needs a __________ to travel through. Without this, there would be no sound.
Answer: _______________
4. Circle the correct answer: Sound is made by:
VibrationsLight wavesHeat energy
💭 Part 2: Understanding Sound Travel
5. Explain why we can hear a train coming by putting our ear to the railway track before we can hear it through the air:
6. Tick all the examples where sound travels through solids:
Knocking on a doorHearing music through headphonesHearing footsteps upstairsThunder in the sky
7. Extension Challenge: Sound travels at approximately 343 metres per second in air and 1,482 metres per second in water. How many times faster does sound travel in water than in air? Show your working:
8. Draw and label a diagram showing how sound vibrations move from a bell through the air to your ear:
✅ Success Criteria - How Did I Do?
Tick the boxes you can do confidently:
I can explain how sound travels through different mediumsI can describe differences between sound in air, water, and solidsI understand that sound needs a medium to travelI can use scientific vocabulary about sound (vibrations, medium, transmission)
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