Geology Year 8 Terminology List

A crystal is best defined as

• Rock that is formed by the cooling or lava or magma.

• Solid mineral that has a variety of special shapes

• Molten rock once it has reached the surface of the earth

Extrusive rock is best defined as

• Molten rock that does not reach the earths surface

• Molten rock once it has reached the surface of the earth.

• Igneous rock that forms on the surface of the earth.

Geology is best defined as

• The study of rocks, the process that forms and changes them.

• Breakdown of rocks by a physical process.

• A model geologists use to explain the rock cycle.

• The removal of weathered rock particles.

igneous rock is best defined as

• Rock that forms on the surface of the earth.

• Molten rock once it has reached the surface of the earth.

• Rock that is formed by the cooling or lava or magma.

• Molten rock that does not reach the earths surface.

How would you best describe interlocking crystals?

• As chemical substances found in rocks.

• As crystals that lock together and grow into each other in a rock.

• Chemicals that flow around sediments & water set like cement.

• Preserved remains of living organisms.

Intrusive igneous rocks

• Is formed by lava cooling

• Is formed by magma cooling

Lava

• Molten rock once it has reached the surface of the earth.

• Molten rock that does not reach the earths surface.

Rocks are made up of a mixture of minerals. What are minerals?

• Compacted sand (sandstone).

• Small particles of rock (sediments).

• An inorganic substance (Iron).

Magma

• Is found on the Earths surface.

• Is found underneath the Earths surface.

Chemical weathering is

• Water and air reacting and breaking down rock.

• The breakdown of rocks by a physical process.