Layers of the Earth
Terms in this set (16)
Substances found in nature that create rocks. There are over 3,000 types!
Rock formed when lava cools and hardens.
Rock that forms when sand, mud and pebbles pile up. Over time, pressure builds up and turns them into solid rock.
A rock that has changed form through pressure and heat.
A substance made of many different materials - small rocks, sand, minerals and silt.
The topmost layer of soil. It is very dark and has a lot of humus and minerals.
The layer directly below the topsoil. It is lighter and lacks humus and many minerals.
The outermost layer of the earth. All life, landforms, oceans, ponds, mountains and hills are located on this layer.
plates aka tectonic plates
The large pieces that make up the crust of the earth. When they move, earthquakes occur. Magma finds space through the cracks and create volcanoes.
The middle and thickest layer of the earth.
The upper part of the mantle. The crust and the plates are located on this layer.
The hotter, lower part of the mantle. It is closer to the core and therefore is a viscous liquid.
The center of the earth.
The liquid rock located within the lower layers of the earth. When it erupts from the surface it is called lava.
The solid, centermost part of the core.
The layer of the core made of liquid rock called magma.