These sites focus on ponds and lakes. Find out what plants and animals thrive in these ecosystems. Includes a story about a frog living in a pond, tips on pond dipping, and a mathematical formula for calculating the surface acreage of ponds. Also learn about energy pyramids, nitrogen and carbon cycles, and biotic and abiotic factors. There are links to eThemes Resources on the water cycle and habitats.
These sites explain the water cycle and include the topics of evaporation, precipitation, and condensation. Watch animated movies and view several diagrams explaining the cycle. There is a word search and a quiz. Includes links to eThemes Resources on water cycle experiments and Missouri's springs.
This resource covers the different ecosystems on our planet. Find out how these biomes differ, what characteristics make them unique, and where they are located. Includes a map of the different habitats found in Missouri and information about habitats in Utah. There are links to eThemes Resources on specific habitats and animal food chains, plus an eMINTS WebQuest.