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According to the pH scale, that is a 7-8, or neutral
After the tablet was put in, the water turned a light green
39 seconds, our best time yet!
The average width of this part of the creek is 4.5 meters.
First, find the width of the creek. Then time how long the orange takes to travel 1 meter
Two crawdads! This is a great catch.
This is pretty disgusting if you ask me.
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