Earth Science Test 4 Skills

Skills and What Mr. A is trying to teach you

Rocks with large grains means…

Cooled down slower

Rocks with small grains means…

Cooled down faster

Large grains

Intrusive

Small grains

Extrusive

Less dense rocks

Above

Dense rocks

Below

Oval dots in a line or curve (visibly metamorphic- heat and pressure)

Curved Grain

Sedimentary- Eroding

Layers

Erosion

Slow

Melting

Fast

Heat and Pressure

Slow

Cooling from volcano

Fast

Cooling from magma bubble

Slow

Compaction

Slow

Closest to the Fault Lines

Metamorphic

Took a long time to form

Big crystals

Formed quickly

Small crystals

What do we use minerals for

Gemstone, Gypsum board, Aggregate, Metal manuacture

Rounded, jagged

Grain shape

Course, fine

Grain size

Banded, nonbanded

Grain pattern