Flocabulary: Types of Rocks

Front

What is an igneous rock?

Back

Igneous rocks are formed from the cooling and solidification of molten rock (magma or lava). They can have crystals and are often found near volcanic activity.

Front

What is a metamorphic rock?

Back

Metamorphic rocks are formed from existing rocks that are changed by heat, pressure, or chemical processes. They often have ribbon-like layers or bands.

Front

What is a sedimentary rock?

Back

Sedimentary rocks are formed from the accumulation and compaction of mineral and organic particles. They often contain fossils and are typically layered.

Front

What is the process of weathering?

Back

Weathering is the breaking down of rocks into smaller pieces by natural forces such as wind, water, and temperature changes.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from one location and transported to another, often by water, wind, or ice.

Front

What is deposition?

Back

Deposition is the process where sediments, soil, and rocks are added to a landform or land mass, often occurring in bodies of water.

Front

What are crystals in igneous rocks?

Back

Crystals in igneous rocks form when magma cools slowly underground, allowing large crystals to develop, or when lava cools quickly on the surface, forming small crystals.

Front

What are ribbon-like layers in metamorphic rocks?

Back

Ribbon-like layers in metamorphic rocks are formed due to the alignment of minerals under pressure, creating a banded appearance.

Front

What is the significance of fossils in sedimentary rocks?

Back

Fossils found in sedimentary rocks provide evidence of past life and help scientists understand the history of the Earth.

Front

How do igneous rocks form from volcanic eruptions?

Back

Igneous rocks form from volcanic eruptions when lava cools and solidifies quickly, creating rocks like pumice and basalt.