This comprehensive study guide covers the main terms and concepts needed for an earth science unit on the earth's layers. Review questions are included at the bottom of the study guide.

[Free Registration/Login may be required to access all resource tools.] Identifies and describes the two internal layers of Earth.

[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.

This PDF resource provides four sequential activities for children in first and second grade which introduce concepts in earth science.