Rocks Are Cool!
Metamorphic Rocks- Rock that was once one form of rock but has changed to another under the influence of heat, pressure, orsome other agent without passing through a liquid phase.
Igneous Rock- Rocks formed by the cooling and solidifying of molten materials. Igneous rocks can form beneath the Earth's surface, or at its surface, as lava.
Sedimentary Rocks- Rock that has formed through the deposition andsolidification of sediment, especially sedimenttransported by water (rivers, lakes, and oceans), ice (glaciers), and wind. Sedimentary rocks are oftendeposited in layers, and frequently contain fossils.
Stratification- formation of strata; deposition or occurrence instrata.
Water and wind sort sediments according to size, weight, and shape of particles, and these sediments settle in layers of relative homogeneity. Therefore this cause the layers to pile up. Stratification may be destroyed by plants or animals, by recrystallization of lime stones, or by other disturbances subsequent to deposition.
Organisms shape land forms by their dead bodies turning to particles, digging holes, making dams, and just simply their footprints.