The Rock Cycle: Types of Rocks

The video tutorial explains the formation and characteristics of three major rock types: igneous, sedimentary, and metamorphic. It describes how igneous rocks form from cooled molten rock, either magma or lava, with examples like granite and basalt. Sedimentary rocks, such as sandstone and limestone, form from compacted sediments or organic remains. Metamorphic rocks result from the transformation of existing rocks under heat and pressure, with examples like slate and quartzite. The video provides a concise overview of these rock types and their formation processes.

What is the term for molten rock found beneath the Earth's surface?

• Basalt

• Magma

• Lava

• Obsidian

Which of the following is an example of an igneous rock formed from solidified lava?

• Sandstone

• Granite

• Gabbro

• Obsidian

How do sedimentary rocks primarily form?

• By the transformation of existing rocks under pressure

• By the deposition and cementation of sediments

• Through the cooling of magma

• From the evaporation of mineral-rich water

Which sedimentary rock is commonly used in cement production?

• Limestone

• Slate

• Coal

• Sandstone

What type of rock is formed when shale is subjected to heat and pressure?

• Quartzite

• Obsidian

• Slate

• Gabbro