Rock Types and the Rock Cycle

The video tutorial explores the rock cycle, explaining how rocks change over time. It covers the three main types of rocks: igneous, sedimentary, and metamorphic, detailing their formation processes and characteristics. The tutorial also discusses the role of minerals as building blocks of rocks and highlights the continuous nature of the rock cycle, emphasizing the transformation of rocks through weathering, erosion, and tectonic activity.

What are rocks primarily composed of?

• Living organisms

• Minerals

• Water

• Air

Which type of rock is formed from cooled magma?

• Sedimentary

• Metamorphic

• Igneous

• Fossilized

What is a characteristic of obsidian?

• Contains fossils

• Rough texture

• Smooth and shiny like glass

• Large mineral grains

How are sedimentary rocks primarily formed?

• Erosion of igneous rocks

• Extreme heat and pressure

• Compacting and cementing of sediments

• Cooling of magma

Which sedimentary rock is often packed with fossilized ocean creatures?

• Sandstone

• Obsidian

• Limestone

• Granite

What causes metamorphic rocks to form?

• Sediment deposition

• Extreme heat and pressure

• Erosion and weathering

• Cooling of lava

What does granite transform into under intense heat and pressure?

• Marble

• Obsidian

• Basalt

• Gneiss

What is the rock cycle?

• A cycle of water evaporation

• A method of mining rocks

• A type of igneous rock

• A process of rock formation and destruction

What happens to rocks during the rock cycle?

• They only erode

• They are created, destroyed, and recreated

• They are only created

• They remain unchanged

Which process is responsible for moving sediments in the rock cycle?

• Erosion

• Compaction

• Melting

• Cooling