American Museum of Natural History
What's This? Sensing
There is a scallop that relies on sight so much that it actually has more than 100 eyes! There are many species that rely heavily on one sense or another. An online interactive resource has youth read about several of these animals. The...
US Environmental Protection Agency
Epa: Acid Rain
What are the causes and effects of acid rain in our environment? To learn more about this serious environmental issue check out this website. Contains a page with several acid rain activities for students.