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EROSION

The wearing down and transport of rocks as a result of forces such as wind, water, heating, freezing, and gravity.

GEOLOGISTA

A scientist who studies rocks and minerals, the process that form rocks, minerals, and landscapes, and the history of the earth and other planets.

GRANITE

A light colored igneous rock comprised of the silicon and aluminum-rich minerals quartz and feldspar. Granites are the most abundant igneous rock that form by crystallization of magma within continental crust.

IGNEOUS ROCK

One of the three main types of rock on earth. Igneous rocks form when magma solidifies either on the surface of a planet or within the planet.

LAVA

Lava is the name given to magma (molten or melted rock) when it reaches the earth's surface. It is ejected from volcanoes during eruptions or oozes from cracks in the earth's surface and ev eventually solidifies to become volcanic rock.

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