• How to Measure Sound with Google’s Science Journal App
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    How to Measure Sound with Google’s Science Journal App

    You can use Google Science Journal to measure sound intensity using your phone’s built-in microphone. Enter observe mode by selecting the menu icon in the upper left, select observe, and then select the speaker icon. You can now measure sound intensity in decibels. Meter mode displays the instantaneous reading. You can switch to graph mode to see how the reading changes over time. In order to take accurate measurements, make sure the microphone is not blocked or covered. Try using the microphone to do some simple experiments. Measure ambient noise levels at the places you live, play, or work. Or, measure how sound intensity changes with distance from the noise…