Name ________________________________________________ Period ___________ Earth Science – Landforms- Words to Know Define the vocabulary word and draw a picture or graphic illustrating the word. Word Definition Landforms - A any natural formation of rock and dirt, found on Earth landform is any natural formation of rock and dirt, found on Earth Weathering – Process by which water, wind, and ice wear down rock and other exposed surfaces Erosion – Movement of weathered rock (sediment) by wind, water, ice, or gravity Deposition – process by which wind, water, and gravity leave eroded sediments in new locations Mass Movement – The downhill movement of rock and soil because of gravity Glacier – Large mass of ice and snow that exist year-round and is involved in erosion Crust – The outermost, rocky layer of the Earth Picture/Graphic/Example Asthenosphere – layer in the upper part of the Earth’s mantle that is made of material that can be reshaped and deformed, and on which the continents can move (Plastic or wax) Lithosphere – Includes the crust and the ridged upper part of the mantle Core – The center and hottest layer of the Earth consisting of an inner layer that is solid and an outer layer that is molten Lithospheric Plate – One of the pieces of Earth’s rocky crust that rest and moves on the semi-liquid mantle Mantle – A layer of Earth’s surface, laying just below the crust and above the inner core Outer Core – The layer inside the Earth between the mantle and the inner core, which has some properties of a liquid (molten iron and nickel) Inner Core – The innermost part of the Earth, made of solid iron and nickel Convection – The transfer of thermal energy in a fluid (liquid or gas) in which warmer fluid rises and cooler fluid sinks in a convection current