Types of rocks

constantly broken apart by freezing and thawing, plant roots, acid, and other forces on rock

• weathering

• erosion

• compaction

• cementation

A rock deep within the Earth experiences extreme temperature and pressure. After a long period of time it becomes which rock?

• Magma

• Igneous

• Metamorphic

• Sedimentary

This rock formed when bits of other rocks became pressed into a solid. What type of rock is it?

• Sedimentary Rock

• Metamorphic Rock

• Igneous Rock

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic

This rock was found near the mouth of a volcano. What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic

The process in which sediment are fused or glued together.

• compaction

• deposition

• organic rock

• cementation

This rock was formed when molten rock cooled into a solid. What type of rock is it?

• Igneous Rock
• Metamorphic Rock
• Sedimentary Rock

Which type of rock is formed from INTENSE heat and pressure?

• igneous
• sedimentary
• metamorphic

This rock was molten magma that slowly cooled under the ground. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

The three groups of rocks are classified by

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