Exploring the Three Types of Rocks

The video tutorial explains the three basic types of rocks: igneous, sedimentary, and metamorphic. It describes how igneous rocks form from magma cooling, sedimentary rocks form from sediment at the Earth's surface, and metamorphic rocks form from existing rocks under heat and pressure. Demonstrations using chocolate, ice cream, and other materials illustrate these processes.

What are the three basic types of rocks?

• Igneous, Sedimentary, and Metamorphic

• Igneous, Sedimentary, and Fossil

• Igneous, Metamorphic, and Lava

• Sedimentary, Metamorphic, and Fossil

How do igneous rocks form?

• From the cooling of magma

• From the erosion of pre-existing rocks

• From biological activity

• From chemical precipitation

What happens to magma when it cools quickly?

• It forms fine-grained crystalline solids

• It forms coarse-grained rocks

• It evaporates

• It remains in a liquid state

What is an example of a fine-grained igneous rock?

• Basalt

• Granite

• Sandstone

• Limestone

What is the primary process that forms sedimentary rocks?

• Volcanic activity

• Cooling of magma

• Erosion and deposition of pre-existing rocks

• High heat and pressure

Tags

NGSS.MS-ESS2-4

What materials can contribute to the formation of sedimentary rocks?

• Sand, gravel, and cobbles

• Sediment, biological activity, and chemical activity

• Magma, lava, and ash

• Minerals, crystals, and gems

Which rock type is most likely to contain fossils?

• Volcanic rocks

• Metamorphic rocks

• Igneous rocks

• Sedimentary rocks

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

How are metamorphic rocks formed?

• By altering pre-existing rocks with high heat and pressure

• By cooling magma

• By erosion and deposition

• By volcanic eruptions

What can cause the formation of new minerals and textures in metamorphic rocks?

• Erosion by water

• Cooling of magma

• Chemical precipitation

• Intense heat and pressure

What are the three basic rock types discussed in the video?

• Igneous, Sedimentary, and Metamorphic

• Sedimentary, Metamorphic, and Fossil

• Igneous, Sedimentary, and Fossil

• Igneous, Metamorphic, and Lava