What are the two main ways geologists classify rocks?

• Composition and texture

• Weight and density

• Color and size

• Age and location

What is a rock?

• A liquid mixture of minerals

• A solid mixture of minerals or particles

• A synthetic material

• A gas formed from minerals

How are rocks classified by their texture?

• By their age

• By their weight

• By the size and feel of their grains

• By their color

Which type of rock forms when magma or lava cools and crystallizes?

• Organic rock

• Igneous rock

• Metamorphic rock

• Sedimentary rock

What are sedimentary rocks primarily made of?

• Compressed dirt and organic material

• Crystallized minerals

• Solidified magma

• Molten lava

How do metamorphic rocks form?

• By deposition of sediment

• By crystallization of lava

• By exposure to extreme temperatures and pressure

• By cooling of magma

What is the rock cycle?

• A method to classify rocks by color

• A series of processes that change one type of rock into another

• A cycle that only affects sedimentary rocks

• A process that only forms igneous rocks

Tags

NGSS.MS-ESS2-1

What process involves the breaking down of rocks into smaller pieces?

• Deposition

• Melting

• Crystallization

• Weathering and erosion

What is uplift in the context of the rock cycle?

• The process of rocks melting

• The process of rocks being eroded

• The process of rocks being pushed up to the Earth's surface

• The process of rocks cooling down

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

What is the importance of understanding the rock cycle?

• It is used to classify rocks by color

• It helps in finding precious metals

• It explains the processes that form different types of rocks

• It helps in identifying the age of rocks