The Science Siblings are celebrating Heart Month with some facts and a DIY model. “For example, the size of your heart is about the same size as your fist. And also, the average heart weighs between ...
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Easy DIY model to show how your lungs really breathe
In this video I walk you through a simple DIY model that shows how the human respiratory system works. Using a plastic cup, straw and balloons, I demonstrate how the nose, mouth, trachea, lungs, rib ...
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