Students investigate variables that may influence the growth of crystals which they have learned to make. There are two options for implementing this activity. The first is open-ended, with the students deciding what variables affect crystal growth and then deciding on the manipulating variables they would like to study. The second is prescriptive and explains to students how to test three variables ... Full description.

This slide show provides basic information on the three major rock types and the rock cycle. Diagrams of the rock cycle explain the processes and changes that connect the three rock types and illustrate how one type can be changed into another. Each of the three types (sedimentary, igneous, metamorphic) are described and illustrated with photographs. Addresses for websites with additional information ... Full description.

This lesson is designed to give students an enhanced understanding of the water cycle and rain as a resource, increase their measurement and data collection skills, and develop graphing and data interpretation skills. It expects that students will demonstrate the ability to measure and record rates of rainfall, evaporation, and infiltration and to graph and interpret data. The lesson provides detailed ... Full description.

This National Aeronautics and Space Administration (NASA) site provides classroom resources about the Moon. A teacher's guide contains basic detailed information about the Moon, such as the lunar landscape, craters, and Moon rocks. The lesson plan and activities sections cover phases of the Moon, lunar landforms, a Lunar Prospector model, and orbits. Full description.