Guide Questions 1. What did you observe when you blew air into the straw? 3. 2. How is sound produced in the activity? How will you describe the sound produced by rubber bands of the same size? How about those of different sizes? 4. What else did you observe while plucking the rubber bands? Explain your observation. Conclusion Application 1. How can you produce different sounds given several paper bags and a comb? Play a familiar tune using different materials found in your kitchen. 2. 199
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