A quick review of surface processes and landforms including mechanical weathering.

This digital textbook covers core earth science concepts and includes interactive features, real-world examples, videos, and study guides.

During a study of rock weathering, students model the process of rock abrasion.

[Free Registration/Login may be required to access all resource tools.] This is a basic introduction to the scientifice method that includes links to instructional videos, grade-level texts, interactive activities, and review materials.

[Free Registration/Login may be required to access all resource tools.] Summarizes the key points about the evolution of eukaryotic cells into multicellular life forms. Includes a few questions to check for understanding.

Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This group of...