CCKH+5.1

=Classifying Rocks 5.1 =

Vocabulary:

 * Texture:** the look and feel of a rock's surface.
 * Grains:** particles of minerals or other rocks.
 * Igneous Rocks:** forms from the cooling of molten rock- magma below the surface or magma at the surface.
 * Sedimentary Rocks:** forms when particles of other rocks of remains of plants and animals are pressed and cemented together.
 * Metamorphic Rocks:** forms when an existing rock is changed by heat, pressure, or chemical reactions.

Outline:

 * Classifying Rocks
 * moon and Earth rock
 * How geologists classify rocks
 * geologists collect/sample rocks
 * observe color, texture, mineral composition
 * Texture
 * texture
 * grains
 * Grain Size
 * grains- large, easy to see
 * Grain Shape
 * any shape, vary widely
 * Grain Pattern
 * flat layers
 * swirvy patterns
 * random
 * string
 * No Visible Grain
 * no crystal grains
 * cooled very fast
 * Mineral Composition
 * shape and size
 * use tests
 * Origin
 * three major groups of rocks
 * igneous rock
 * sedimentary rock
 * metamorphic rock