How can you provide healthy soil for your garden? Study worms, bacteria, and other microorganisms in a lesson about decomposition and organic compost. After discussing what you know about worms and watching a video, watch what worms do...

Aside from a mention of a textbook page, this chemistry assignment is a suitable review of acids and bases. It begins by addressing conjugate pairs and acid base reactions. Neutralization and amphoteric properties are also dealt with....

Everybody knows that worms are good for the soil, but not everybody knows why. Here's a project that investigates just one of the ways earthworms improve the earth.