1. Introduce the idea of building a model of the water cycle. Remind students that they have seen and used drawings and animations as models of a solid, liquid, and gas. Tell students that they will ...

It simply moves around in what is called the water cycle. The water cycle is the continuous journey of water from oceans and lakes, to clouds, to rain, to streams, to rivers and back into the ...

Around the globe, hotter temperatures stoked by climate change are increasing the odds of both severe drought and heavier precipitation that can wreak havoc on people and the environment.

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 ...