Describes the physical characteristics of Daphnia, their importance as a food source for freshwater fish, their diet, life cycle, and methods of reproduction. Offers tips for how to start and maintain a colony of Daphnia that can be used...

Complete interactive word searches to find animals of the intertidal zone. Learn ocean facts by completing a crossword puzzle. Match up pieces of a puzzle to display the water cycle. And after learning all that information, test yourself...