Learn why humans need the mineral zinc to survive. Its functions are described, foods that provide us with zinc, what happens when we have a deficiency or get too much, and recipes for incorporating zinc into your diet.

Students will look at the needs of humans and of fish in this mini-unit to develop an appreciation of how important our water resources are.

Humans need food, water, and warm shelter to survive. But a lot of humans depend on fossil fuels to supply gas and electricity to heat our homes. But burning fossil fuels to create energy is harmful to the environment. In this science...

In the fall of 1939 the Nazis invaded Irene Gut's beloved Poland, ending her training as a nurse and thrusting the sixteen-year-old Catholic girl into a world of degradation that somehow gave her the strength to accomplish what amounted...

The depletion of the world's natural resources threatens the very survival of humans. This article discusses the causes and consequences of our overuse of natural resources, projections for our future, and what types of solutions are...