The Rock Cycle

Earth's internal heat and external forces like weathering and erosion

Photosynthesis and respiration

Ocean currents and tides

Wind patterns and precipitation

They form from the cooling and solidification of molten rock.

They are formed by compaction and cementation of sediment.

They are formed by the transformation of existing rocks under heat and pressure.

They are always formed on Earth's surface.

Melting

Cooling and solidification

Photosynthesis

Compaction and cementation

Driving the formation and transformation of rocks at plate boundaries

Causing the weather to change rapidly

Producing energy for plant growth

Creating ocean currents

Granite is a common intrusive igneous rock used for countertops and building materials.

Fossils are often found in igneous rocks.

Marble is a type of sedimentary rock.

The rock cycle operates only over a few years.