| Here's a fun way to mix music with science. Gather some plastic bottles (from water, juice, or soda). Pour different amounts of water in each bottle. See what happens when you blow air across the top of the bottles. Which bottle makes the highest sound? Which makes the lowest?
Do different size bottles sound different? What happens to the sound, if you pour more water in that bottle? You might even be able to play a simple melody.
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 | What causes things to change? That's a basic question for learning about science. Through this activity, your child can see and hear that different levels of water change the pitch. It may even take some practice for your child to make a musical sound, so then you're encouraging persistence -- an important tool for school.
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