Understanding the Three Types of Rocks

What are the three main types of rocks?

• Igneous, Sedimentary, Metamorphic

• Igneous, Sedimentary, Fossil

• Igneous, Fossil, Metamorphic

• Sedimentary, Fossil, Metamorphic

Which type of igneous rock has a coarse texture due to slow cooling?

• Granite

• Basalt

• Obsidian

• Pumice

What type of sedimentary rock is formed from compressed biological materials?

• Organic sedimentary rock

• Clastic sedimentary rock

• Chemical sedimentary rock

• Intrusive igneous rock

Which type of metamorphic rock has minerals aligned in layers?

• Foliated metamorphic rock

• Nonfoliated metamorphic rock

• Intrusive igneous rock

• Extrusive igneous rock

What process can transform sedimentary rocks into metamorphic rocks?

• Heat and pressure

• Cooling and solidification

• Erosion and sedimentation

• Chemical precipitation