Starter quiz
An object that vibrates to create a sound is called ...- a sound sensor.
- a sound source. ✓
- a decibel.
-
The volume of sounds are measured in ______.- 'decibels' ✓
- Which of the following would create good sound insulation?
- A thin piece of paper
- A cardboard box ✓
- A metal tray
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- Sound waves need a ______ to travel through to be heard.
- 'medium' ✓
What equipment can you use to measure the volume of sounds?- A remote control
- A sound sensor ✓
- An online music streaming account
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- Scientists ask questions about how the volume of a sound depends on the distance from the sound ______.
- 'source' ✓
Exit quiz
- Scientists often use a table to __________ data from observations and measurements.
- measure
- record ✓
- question
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The volume of a sound depends on the ______ from the sound source.- 'distance' ✓
The greater the distance from the sound source, the __________ the sound.- louder
- quieter ✓
- higher
- lower
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What do scientists often do when they evaluate a completed enquiry?- make predictions
- suggest improvements ✓
- celebrate finishing the enquiry
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- Which of these improvements might be made to an investigation about the volume of sounds?
- Use a long tape measure instead of just one metre stick. ✓
- Use different types of sound sources.
- Keep increasing the volume of the sound used, the further you move away from it.
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Which sound would you hear the loudest?- Someone speaking from far away.
- Someone speaking next to you. ✓
- Someone whispering from far away.
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Worksheet
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Lesson Details
Key learning points
- Scientists often record data from observations and measurements in tables.
- The volume of a sound depends on the distance from the sound source.
- The greater the distance from the sound source, the quieter the sound.
- Scientists often evaluate a completed investigation and suggest improvements.
Common misconception
Children may think that the volume of sounds are the same no matter how far away from them you are.
Children will carry out a fair test investigation to find out for themselves how the volume of a sound decreases with distance from the sound source.
Keywords
Sound source - An object that vibrates to make a sound is called a sound source.
Volume - The volume of a sound is how loud or quiet the sound is.
Fair test - A fair test investigation is when only one thing is changed and another is measured. All other things are kept the same.
Evaluate - To evaluate is to think about what you did and suggest any changes or improvements.
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