The Rock Cycle

Rocks Rock: Any solid mass of mineral-like matter that occurs naturally as part of our planet Each of the component minerals retain their properties in the mixture. Rocks Classified Into Three Groups Based on How They Were Formed Major Types of Rock: Igneous, Sedimentary, and Metamorphic

Vocabulary Magma: melted rock, deep beneath Earth’s surface. Lava: Magma that reaches the surface. Weathering: ]process where rocks are physically and chemically broken down by water, air, and living things. Sediments: Weathered pieces of earth materials Interactions among Earth’s water, air, and land can cause rocks to change from one type to another. The continuous processes that cause rocks to change make up the rock cycle.

Rock Cycle 5 4 6 12 3 7 11 10 13 2 8 1 9 Weathering occurs Sediments are often moved by water, gravity, glaciers, or wind. 6 12 3 7 11 10 A result of a volcanic eruption If the metamorphic rocks are subjected to additional pressure changes or still higher temps, may melt to form magma and restart the cycle 13 2 8 1 9

1 2 A result of a volcanic eruption 1. Magma forms when rock melts deep within the surface 2 A result of a volcanic eruption 1

2. When magma or lava cools and turns solid igneous rocks form. 4 3 3. Rocks at Earth’s surface are broken down into smaller places called sediments.

Sediments are often moved by water, gravity, glaciers, or wind. Weathering occurs 5 Sediments are often moved by water, gravity, glaciers, or wind. 6

4. When sediments are compacted and cemented, sedimentary rocks form. 8 If the metamorphic rocks are get hotter or are pressurized, may melt to form magma and restart the cycle 7

5. Any type of rock that is changed by heat, pressure, or fluids becomes a metamorphic rock 10 If temps and pressure are high enough then the they could melt and recrystallize to form new igneous rock. 9

11 12 Rocks that are buried may become uncovered and begin to be weathered turning metamorphic rocks back into sedimentary rocks. Weathering is a process powered by energy from the sun, changing metamorphic rock into sedimentary rocks.

If temps and pressure were high enough then the igneous rock could melt and recrystallize to form new igneous rock. 13