The use of invertebrates as classroom "pets" can develop students' skills in scientific inquiry and instill respect for science. Few materials are needed for projects involving invertebrates. Suggested activities using snails, crickets, earthworms, crayfish, and guppies are offered. (DF)

Describes a miniscience unit on frogs for elementary grades that teaches students about how frogs develop from tadpoles and how frogs need water during their entire life cycle. Students learn such skills as observation, collecting, and recording data. Provides addresses for ordering resources for teachers and students. (SM)

Teachers can take advantage of students' interest in hair by using activities that focus on human hair in science or biology classes. Facts about the growth, purpose, and nutritional requirements for healthy hair are noted. Suggestions for measuring hair strength, and for making a hygrometer to measure general changes in humidity are included. (PP)