Rocks Rock

Formed by heat and pressure

• Sedimentary
• Metamorphic
• Extrusive Igneous
• Intrusive Igneous

Formed by compacting & cementing of sediments

• Sedimentary
• Metamorphic
• Extrusive Igneous
• Intrusive Igneous

Formed by weathering & erosion

• magma
• sediments
• sedimentary rock
• intrusive igneous

Formed by melting

• magma
• sediments
• sedimentary rock
• intrusive igneous

Has wavy bands.

• sedimentary rock
• metamorphic rock
• extrusive igneous rock
• intrusive igneous rock

Contains fossils. 

• sedimentary rocks
• metamorphic rocks
• extrusive igneous rocks
• intrusive igneous rocks

You find a rock in which the grains are arranged in parallel bands of white and black crystals.  The rock is probably a(n)

• Igneous rock
• Sedimentary rock
• Metamorphic rock
• Extrusive rock

Which of the following is not a rock

• Pumice
• Lava
• Halite
• Sandstone

The three groups of rocks are classified by

• How they form
• Color
• Grain size
• Chemical Composition