The Dynamic Journey of Rocks Through the Rock Cycle

The video explains the rock cycle, highlighting how igneous, sedimentary, and metamorphic rocks transform into one another through processes like weathering, erosion, heat, and pressure. It uses granite as an example to illustrate these transformations, showing how it can become sedimentary sandstone or metamorphic gneiss. The cycle is continuous, with rocks able to revert to their original forms or transform into new types, emphasizing the dynamic nature of Earth's crust.

What is the primary focus of the rock cycle?

• The formation of new minerals

• The movement of tectonic plates

• The erosion of mountains

• The transformation of rocks over time

Which process breaks down granite into smaller pieces?

• Melting

• Compaction

• Weathering and erosion

• Recrystallization

What type of rock is formed when sediments are compacted and cemented together?

• Volcanic rock

• Sedimentary rock

• Metamorphic rock

• Igneous rock

What causes an igneous rock to transform into a metamorphic rock?

• Weathering and erosion

• Intense heat and pressure

• Cooling of magma

• Deposition of sediments

What happens to an igneous rock when it is exposed to intense heat and melts?

• It becomes a sedimentary rock

• It forms crystals

• It turns into a metamorphic rock

• It returns to a liquid state of magma

What is the result of magma cooling and solidifying?

• Formation of igneous rock

• Formation of minerals

• Formation of sedimentary rock

• Formation of metamorphic rock

Which rock type can be formed from any other rock type through weathering?

• Volcanic rock

• Igneous rock

• Sedimentary rock

• Metamorphic rock

What is a key concept of the rock cycle?

• Rocks remain the same over time

• Rocks can transform into any other type of rock

• Rocks can only change once

• Rocks only form from magma

How do metamorphic rocks form?

• By weathering and erosion

• By the deposition of sediments

• Through the cooling of magma

• Under intense heat and pressure

What can happen to any rock type over millions of years?

• It can only become sedimentary rock

• It can disappear completely

• It can transform into another rock type

• It can become a fossil