Rocks: Video Assessment

The video tutorial introduces the topic of rocks, explaining their composition as mixtures, the concept of liquid rock at Earth's surface, and how lava cools to form rocks. It provides examples of rocks like limestone and coal and discusses the creation of rocks through heat and pressure.

What are rocks primarily composed of?

• A single mineral

• Water and air

• A mixture of minerals

• Only organic materials

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

• Magma

• Sediment

• Lava

• Granite

Which of the following is formed when lava cools and solidifies?

• Sandstone

• Sedimentary rock

• Igneous rock

• Metamorphic rock

Which of these is an example of a sedimentary rock?

• Basalt

• Marble

• Limestone

• Granite

How are metamorphic rocks formed?

• By accumulation of sediments

• By volcanic eruptions

• Through heat and pressure

• By cooling of magma