Fourth graders are experts at wave parts--identifying differences in wavelength and amplitude. But what happens to objects and their motion as waves change? Creating waves with different amplitudes, they saw how waves can carry an object to higher heights. And creating waves with different amplitudes brought about a change in the speed in which an object reached the edge of the container.
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Mrs. BrinzaAsk your parents what the first phone they used was like? How has the telephone changed over their lifetime? How will it change during yours? |