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Rocks and Minerals

Science

Rocks and Minerals Chapter Video

Rocks and Minerals Chapter Video

cast

a fossil formed when dissolved minerals fill a mold and harden
cast Simple Definition

fossil

the preserved traces and remains of an organism that lived long ago
fossil Simple Definition

igneous rock

a rock formed when melted rock cools and hardens
igneous rock Simple Definition

luster

the way a mineral's surface reflects light
luster Simple Definition

metamorphic rock

the rock that forms when existing rock is changed by heat, pressure, or chemicals
metamorphic rock Simple Definition

mineral

a natural inorganic solid with definite chemical composition and structure
mineral Simple Definition

mold

a rock fossil created when a buried organism dissolves
mold Simple Definition

rock

a natural solid made of a mixture of minerals
rock Simple Definition

rock cycle

a process that changes a rock from one form to another
rock cycle Simple Definition

sedimentary rock

a rock that forms when sediment is pressed and cemented together
sedimentary rock Simple Definition

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