Describe how to make the following models with the help of objects found around you.
2. Stethoscope model
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Answer:
stethoscope model
Explanation:
Take a small funnel of 6 to 7 cm in diameter . fix a rubber tube 50 cm long tightly on the stem of the funnel and fix it tightly with a rubber band . put the open end of the tube on one of your ears . place the mouth of the funnel on your chest near the heart . now try to listen the heartbeats carefully
it helps you hopefully
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