ES Ch 1.2 Earth’s Interior BIG QUESTIONS How do Geologists Learn about Earth’s interior?? What are the features of Earth’s Crust, Mantle, and Core??

Evidence of Earth’s Interior Direct: from Rock Samples Drills- 12.3 km Volcanoes- 100 km Labs- recreated layers and force Indirect: from Seismic Waves Produced by earthquakes Study how they travel through Earth’s interior

The Crust Solid Rock that includes both dry land and the ocean floor Ocean Crust: Basalt Continental Crust: Granite

Mantle Lithosphere Uppermost part of Mantle Similar to crust in composition and texture Asthenosphere Below lithosphere Higher pressure Bends but doesn’t break

Core Inner Core Dense ball of solid metal Extreme temp. and pressure Outer Core Molten metal surrounding inner core

ES Ch 1.2 Earth’s Interior BIG QUESTIONS Try Them Now! How do Geologists Learn about Earth’s interior?? What are the features of Earth’s Crust, Mantle, and Core??