Alabama Learning Exchange
Alex: Amazing Adaptations Probing Pinnipeds
This is a technology-rich, hands-on science experiment exploring the world of pinniped adaptations using a digital probe as a data collection device.
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.