Basic Structure of the Earth Basic Structure of the Earth Definitions Pressure – amount of force acting on a surface Plastic - Capable of undergoing continuous deformation…

Movements of the Earthâs Crust Harcourt Science Unit D Chapter 1 Mrs.Strand 6th grade Lockwood Middle School What are the Earthâs Layers? Terms: Crust Mantle Core Lithosphere…

Volcanism Volcanism Volcanism Volcanoes are fueled by magma. Once magma forms, it rises towards Earthâs surface because it is less dense than the surrounding mantle and…

Volcanoes: Part One New Terminology Viscosity Resistance of a material to flow Ex: honey vs. tar Volatiles Gases dissolved in magma Makinâ Magma⦠Recall the asthenosphere⦅

Plate Tectonics I. EARTH Seismic Waves Paths Through the Earth I. EARTH A. Structure of Earth’s Interior I. EARTH 1. Crust • Continental crust - Upper crust composed…