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Materials 1. Cardboard roll 2. 2 plastic cups 3. mobile/phone.
More details about our product:- This speaker is made at a low cost, So everyone can easily make it. All you do is cut two…
Materials:- CD Or DVD More details about this:-
Dispersion is the phenomenon in which the phase velocity a wave depends on its frequency. Media having this common property may be termed dispersive…
Materials:- 1.Pencils 2. rubber bands 3. cardboard box.
Some details about products:- In this activity, The longer length of the rubber band makes a low, long, heavy sound and vibrates at a slower rate of frequency….
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