Water Science for Kids
We are back with another fun water science project for kids! So far we've made a needle float, explored color theory with ice, learned about surface tension, studied evaporation, put a twist on the classic sink or float game, and today we are demonstrating how to keep a tissue dry in water. This simple water science experiment is sure to delight kids of all ages. The best part it, it takes only a few seconds to set up.
How to Keep a Tissue Dry in Water
Push the tissue deep inside the cup. Fill a bowl or other container with water. Have your child press the cup down into the water, keeping it straight. JZ (6) was shocked to see that the tissue didn't have even a drop of water on it.
I explained how air pushed the water down and away from the cup, so the tissue was surrounded by air instead of getting near water. I told JZ that he could breathe under water using this same method if he did this trick with a bucket large enough to fit his head. We will try it next time we go to the pool.
We repeated the experiment, but this time I instructed JZ to tilt the cup while under water. As you can see in the image above, a bubble of air came out of the cup and was quickly replaced with water. The image below shows the wet tissue sinking to the bottom of the container.
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