Rocks and Minerals

Front

What are sediments?

Back

Sediments are small particles of rock, minerals, or organic material that have been broken down by weathering and erosion.

Front

What type of rock forms from sediments?

Back

Sedimentary rocks form from the accumulation and compaction of sediments.

Front

What do ripple marks in sedimentary rocks indicate?

Back

Ripple marks indicate that the rock was formed in a fast-moving stream or body of water.

Front

What is the difference between fine-grained and coarse-grained igneous rocks?

Back

Fine-grained igneous rocks have small crystals due to rapid cooling, while coarse-grained igneous rocks have large crystals due to slow cooling.

Front

What is porphyry?

Back

Porphyry is a type of igneous rock that has large crystals embedded in a finer-grained matrix.

Front

How do igneous rocks form?

Back

Igneous rocks form from the cooling and solidification of molten rock (magma or lava).

Front

What is magma?

Back

Magma is molten rock located beneath the Earth's surface.

Front

What is lava?

Back

Lava is molten rock that has erupted onto the Earth's surface.

Front

What is the rock cycle?

Back

The rock cycle is the continuous process of rock formation, breakdown, and reformation through various geological processes.

Front

What are minerals?

Back

Minerals are naturally occurring, inorganic solids with a definite chemical composition and crystalline structure.