Types and Formation of Rocks

This video tutorial explores the fascinating world of rocks, explaining their formation and classification into three main types: sedimentary, metamorphic, and igneous. It delves into the processes that form each type, such as sedimentation, heat, pressure, and cooling of molten rock. The video also introduces the rock cycle, illustrating how rocks transform from one type to another over time. Geologists' role in studying rocks and the Earth's crust is highlighted, making the subject engaging and informative.

What are rocks primarily composed of?

• Gases

• Plastics

• Minerals

• Liquids

Which of the following is NOT a category of rocks?

• Sedimentary

• Volcanic

• Igneous

• Metamorphic

What are sedimentary rocks primarily made from?

• Crystals

• Molten rock

• Sediments

• Heat and pressure

Which natural process is essential for the formation of sedimentary rocks?

• Magnetic fields

• Water pressure

• Evaporation

• Cooling

What causes metamorphic rocks to form?

• Cooling of lava

• Sediment accumulation

• Heat and pressure

• Evaporation

What is the Earth's outer shell primarily made of?

• Water

• Sedimentary rocks

• Metamorphic rocks

• Igneous rocks

What is molten rock called when it is inside the Earth?

• Crust

• Magma

• Lava

• Sediment

Where do igneous rocks commonly form?

• Deserts

• Volcanoes

• Mountains

• Oceans

What is the process called where rocks change from one type to another?

• Rock transformation

• Rock metamorphosis

• Rock cycle

• Rock evolution

Which type of rock is formed when molten rock cools?

• Crystalline

• Metamorphic

• Sedimentary

• Igneous