Rocks

Types of Rocks

Sedimentary Rocks

Metamorphic RocksIgneous Rocks

Sedimentary RocksHow They are Made

Wind and water break down the earthWind and water break down the earth Bits of earth settle in lakes and riversBits of earth settle in lakes and rivers Layers are formed and build upLayers are formed and build up Pressure and time turn the layers to rockPressure and time turn the layers to rock

Types of Sedimentary Rocks

Gypsum

Sandstone

Shale

Limestone

Conglomerate

Metamorphic RocksWhat are They?

Rocks that have changedRocks that have changed They were once igneous or sedimentaryThey were once igneous or sedimentary Pressure and heat changed the rocks Pressure and heat changed the rocks

Types of Metamorphic Rocks

Schist Gneiss

Igneous RocksWhat are They?

Fire RocksFire Rocks Formed underground by trapped, cooled Formed underground by trapped, cooled

magmamagma Formed above ground when volcanoes Formed above ground when volcanoes

erupt and magma coolserupt and magma cools

Types of Igneous RocksGranite Scoria

Pumice Obsidian

Rocks Have Been Used For Many Years

and For Many Things

Rocks