The surge in human population in the last 2,000 years, due in large part to better health care, has brought a surge in the demand for resources and in pollution. The graphics, photographs, and real-life examples in a thought-provoking...

Pupils explore biological pest control. In this science lesson plan, students discover organisms that eat mosquito wigglers in order to help reduce the number of mosquitoes in an area. Pupils identify predators of the mosquito and...