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Maria plays piano. She wants to make more music. Can you build her something to play on?

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Touch some classroom instruments as we play them.
What did you feel?

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When did they vibrate?
What do you think makes that happen?

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Work together. Plan a way to test how vibrations make sound.
Start with a drum.
Build one to help Maria play more music.

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Program your model. Make the drumstick hit the white plate over and over.

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Now take turns testing your ideas.
Hit the white plate with the drumstick.
Look, listen, and feel.

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What happens to the white plate?
When does the drum make sound?

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Change the vibration.
Try different sticks or changing where you hit the plate.

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Try dragging the stick instead of hitting with it.
What other sounds can the drum make?

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Use your model to explain:
What idea about sound did you test?

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How does your drum make sound?
How did you make different sounds with your drum?

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What happens to the white plate when you hear sound?
Is it always the same?

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Now test another kind of instrument.
Use your drum testing plan or change it.

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Stretch and pluck a rubber band.
What do you hear? See? Feel?

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Great job!