CK-12 Foundation
Ck 12: Earth Science: Earth's Interior
[Free Registration/Login may be required to access all resource tools.] Discover how scientists learn about Earth's interior using seismic waves, meteorites, density, and the magnetic field. Additional resources are available for download.
CK-12 Foundation
Ck 12: Earth Science: Earth's Interior
[Free Registration/Login may be required to access all resource tools.] How scientists use seismic waves to learn about the Earth's interior.