2425 Sci 8 Geology #1

Front

What is chemical weathering?

Back

Chemical weathering is the process by which rocks break down due to chemical reactions, often involving water, acids, or gases, leading to changes in the mineral composition of the rock.

Front

What are types of sediment?

Back

Types of sediment include clay, silt, sand, pebbles, cobbles, and boulders, which are classified based on their size.

Front

What does the size of crystals indicate about their formation time?

Back

Larger crystals indicate that a longer time was used to form them, as they require more time to grow.

Front

What is frost action?

Back

Frost action is a type of physical weathering that occurs when water enters cracks in rocks, freezes, and expands, causing the cracks to widen.

Front

What role do water, oxygen, and carbon dioxide play in weathering?

Back

Water, oxygen, and carbon dioxide contribute to chemical weathering by reacting with minerals in rocks, leading to their breakdown.

Front

What is physical weathering?

Back

Physical weathering is the process of breaking down rocks into smaller pieces without changing their chemical composition, often through mechanical forces like wind, water, or temperature changes.

Front

How does acid rain affect limestone?

Back

Acid rain can dissolve limestone through chemical weathering, leading to the formation of features like sinkholes and caves.

Front

What is the difference between sediment and rock?

Back

Sediment consists of small particles that can be transported and deposited, while rock is a solid mass composed of one or more minerals.

Front

What is the significance of sediment size in geology?

Back

Sediment size can indicate the energy of the environment in which it was deposited; larger sediments typically require more energy to be transported.

Front

What is the process of erosion?

Back

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