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Rocks
Types of Rocks
Sedimentary Rocks
How They are Made
Wind and water break down the earth
Bits of earth settle in lakes and rivers
Layers are formed and build up
Pressure and time turn the layers to rock
Types of Sedimentary Rocks
Metamorphic Rocks
What are They?
Rocks that have changed
They were once igneous or sedimentary
Pressure and heat changed the rocks
Types of Metamorphic Rocks
Igneous Rocks
What are They?
Fire Rocks
Formed underground by trapped, cooled magma
Formed above ground when volcanoes erupt and magma cools
Types of Igneous Rocks
Rocks Have Been Used For Many Years
and
For Many Things
Rocks