Rocks

Sandstone
a sedimentary rock composed of mainly of sand-sized minerals and rock grains semented by sand or quartz
Fossils
Mineralized remains of ancient animals or plants preserved in sedimentary rock
Metamorphic
a type of rock that forms when pressure, heat, and fluids transform pre-existing rocks.
Slate
a fine grained metamorphic rock that can be split into thin layers.
Geologists
Scientists who study the structure of Earth, rocks, and the processes that have shaped it.
Marble
a hard crystaline metamorphic rock formed from limestone
Granite
a extremely hard, dense, igneous rock that has a visiblly crystalline texture.
Erosion
The process by which water, ice, wind, or gravity move weathered rocks or soil.
Coal
a readily combustable black sedimentary rock formed from prehistoric plant remains.
Igneous
The type of rock that forms from the cooling of molten magma or lava.
Sedimentary
The type of rock that forms when layers of sediments harden over millions of years.
Weathering
Natural chemical and mechanical processes that break down rocks into smaller particles and soil.