Our science lesson for today was called "Walking Water" and the kids got to see how water could move from one cup to another without us pouring it out. We started with two different cups at the top, one cup filled with blue water (just for fun) and the other with plain, clear, tap water. Then, we added a strip of paper towel in each cup, leading to an empty cup below. For the blue water cup, that was it, we just had to stand back and watch a while. For the clear water cup, we added a few drops of food coloring on the paper towel to see what would happen.
We discovered that since the paper towels absorb the water, they help move it throughout the towel. And we also found out that the water moving through the paper towel "carried" the food coloring with it as it traveled. We even got to see the colors mix and blend as they traveled to the lower cup.
And, it took a couple of days, but eventually we got to see the whole cupful of water "walk" itself down into the lower cups. Pretty cool! :)
RSS Feed
