Measure DC and AC voltages and observing them on a oscilloscope-like interface.
Watch waveforms in frequency domain (like a spectrum analyzer).
Log data at a specified time interval, and then draw the graph of logged data.
Record animal sounds such as the sounds of birds and observe their waveforms. Which of these bird calls are high frequency sounds, which are the low frequency ones? Adjust the frequency sliders accordingly.
Whistle into the microphone and compare the loudness and frequency of whistles by observing the waveforms.
Turn the sensitivity slider up to the maximum and observe ambient noise like in a quiet room and compare to the sounds near a noisy road.
Measure the voltage of an AA size pencil cell battery. What settings do you use for a battery, AC or DC?
Log temperature using a temperature sensor at one hour intervals. When in the day is it the hottest? The coldest?
What am I learning?
You are measuring information that is called data which helps you understand not only how much something measures but also how to view measurements on graphs to understand data visually.
Why is this important?
With observations about water or bugs or leaves or trees, you can determine patterns and perhaps predictability in the natural world around you.
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