Pumping Straw - a centrifugal pump -- ".When you spin the straw it forces the water inside to spin. If an object is spinning anything on that object appears to feel a force pushing it outward. This pseudo-force is called centrifugal force.
Super easy and fun water science experiment! All you need is a roll of waxed paper, some drinking straws, water, and a spoon or water dropper. See the site to get suggestions for how this experiment demonstrates surface tension and the bonding of water mo