Geology covers theseconcepts: Earth has layers Earths crust is made of rock and soil soil is made when rocks break down and mix with decaying plants rocks have different properties rocks are formed in different ways the surface of the Earth is always changing the resources we use come from the Earth some rocks contain fossils that tell about life on Earth long ago. A variety of engaging activities present the concepts in ways that students can understand. Each concept presented includes: teacher directions for lessons reproducible resource pages such as sets of picture cards, minibooks, and lab sheets to record the results of hands-on investigations