If this happens when you try the experiment, drop the bags into a bucket of cold water and dispose of the resulting solution by flushing it down the toilet. Be sure to wash your hands immediately ...

Two recent studies find that people experience less pain when a person is in the room with them, but even better outcomes ...

This experiment demonstrates how water at different temperatures has different densities, creating beautiful layering effects. You'll see how warm and cold water interact and learn about density ...