Igneous and Metamorphic Rocks: Metamorphism

The video tutorial explains how clay can transform into a single piece when subjected to heat and pressure, similar to the metamorphic processes that occur deep within the Earth. It describes how existing rocks can change dramatically due to heat, pressure, and chemical reactions. The concept of metamorphism is introduced, highlighting the transformation of one type of rock into another. To illustrate the intensity of pressure within the Earth, an analogy of stacking books on a hand is used, helping viewers imagine the pressure created by layers of rock thousands of feet thick.

What happens to clay when it is squeezed and heated?

• It breaks into smaller pieces.

• It dissolves in water.

• It becomes a single piece of clay.

• It turns into sand.

What is the process called when one type of rock changes into another due to heat and pressure?

• Erosion

• Weathering

• Sedimentation

• Metamorphism

Which of the following is NOT a factor in the metamorphism of rocks?

• Wind

• Chemical reactions

• Pressure

• Heat

How can you visualize the pressure experienced by rocks deep within the Earth?

• By observing a calm lake

• By watching a waterfall

• By imagining a gentle breeze

• By stacking books on your hand

What analogy is used to explain the pressure created by layers of rock?

• A flowing river

• A stack of books

• A rolling stone

• A mountain peak