Our next science unit of study investigates the properties of sound and light waves. Students will use the scientific method to conduct experiments to answer questions about different kinds of waves. Our first experiment had students asking, "Can sound make materials vibrate?" The children topped a cup with cling wrap and salt, and brainstormed ways they could make the salt move by only using sound. We worked together to fill out the following chart before and after the experiment:
What do scientists do?
1. Ask a question
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Can sound make materials vibrate?
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2. Form a hypothesis
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We think that clapping, hitting the ground, the radio, our voice, and the bell will make the salt vibrate.
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3. Test
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4. Record
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5. Make a conclusion
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The salt vibrated when we used the radio and our voice. The bell worked for some people. Clapping and hitting the ground only worked for some people.
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We recorded our results too. Ask your child to tell you more!
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