Equipment:
Glass of water and a tuning fork
Steps:
- Tap the prong end of the tuning fork on a wooden block or rubber bung
- Hold the joined end
- Slowly lower the prong end towards the surface of the water
- Use your observational skills - watch carefully to see what happens
- Listen
- Draw a set of pictures to show what happens
- Add labels to your pictures
Focus Questions
- What do you see when the tuning fork touches the water?
- What do you hear when the tuning fork touches the water?
- What is happening?
- Why does this happen?
- What does this tell us about how sound is made?
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What did you learn during this investigation?
What surprised you?
What new thinking or ideas did you have?
What was your favourite experiment?
What did you find hard?