1 - Getting Started ~4 mins
Put a gentle hand on your throat and hum a quiet tune. What can you feel?
Keep humming. Does the feeling stop when the sound stops?
2 - What Do You Think? ~4 mins
Our big question today: what is happening when something makes a sound?
Tell a partner what you think. Then we will try some things and find out.
3 - Feel the Wobble ~12 mins
We will make sounds and notice what is moving. When the sound stops, notice that too.
Watch together — drum and rice: watch the rice when the drum is tapped gently.
Then at your desks with a partner:
- Ruler — hold one end firmly so half hangs over the edge. Flick the free end gently. Feel it while it sounds.
- Elastic band — one of you holds it stretched between two thumbs. Your partner plucks once, then feels the band while it sounds. Then swap.
- Throat — hum again with fingertips lightly on your throat.
4 - What Did You Notice? ~3 mins
Eyes this way. What did you feel? What did you see?
Tell us about one try: the ruler, the band, your throat, or the rice on the drum.
5 - See the Wobble ~5 mins
Look at the drum on the board. Watch the skin shake. What is the same as the real drum we just used?
The shaking we felt has a name: a wobble. Scientists also say vibration.
Sound is what we hear when that wobble reaches our ears.
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