Originally Posted by fugazied
"How does one empty a bottle as rapidly as possible?" I learnt that one as a kid hehe. It's a good one to get your kids thinking too, put some water in a soda bottle, tape the bottle opening to the opening of another bottle, and see if your kids can figure out how to get the water from one bottle into the other in under ... say 5 seconds (depending on how much water). A good way to get them thinking about science/physics.
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