You could repeat this experiment in the kitchen sink, or a bathtub if you have one. The key point is that the water level ...

They grow a new pair of legs at each stage. Angel Fitor In every drop of water is a hidden world. Scuba divers can’t see it through their masks; neither can snorkelers swimming among the coral ...

Glaciers are melting faster than ever. As the planet gets hotter, our frozen world is shrinking, making the water cycle more unpredictable. For billions of people, meltwater flows are changing ...