Today, in class we worked on Activity 21, where we had to see which type of pump moves water the best. So we conducted an experiment where we had to get a bucket of water and see which pump, the black......
or the blue.....
moved the water into the empty bucket the best.
The whole class agreed that the black pump moved the best because it trapped the water on one side when you squeezed it, and when you squeezed it again then it let the water out on the other side to the dry and empty bucket. We took turns and saw that the blue pump just takes the water and then when you let go of the pump, it releases the water back into the same bucket where the water originally came from.
After we did that for 14 minutes in total (7 minutes for each pump) we talked in class and wrote down what we observed on pg. 26. Finally, we had a towel to soak up the water that got on the table and cleaned up.
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