Review: Weathering & Erosion

Front

What is weathering?

Back

The process of breaking down rocks and minerals into smaller pieces by physical, chemical, or biological means.

Front

What is erosion?

Back

The process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water flow and transported to another location.

Front

What is the difference between weathering and erosion?

Back

Weathering is the breakdown of rocks, while erosion is the movement of those broken materials.

Front

What is seafloor spreading?

Back

The process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away from the ridge.

Front

What role do mid-ocean ridges play in seafloor spreading?

Back

They are the locations where molten material rises from the mantle, creating new oceanic crust.

Front

What is carbonation in the context of weathering?

Back

A chemical weathering process where carbon dioxide reacts with rainwater to form carbonic acid, which weathers certain types of rocks.

Front

What is abrasion?

Back

A form of mechanical weathering where rocks are worn down by friction and contact with other materials.

Front

What is sediment?

Back

Small, solid pieces of material that come from rocks or living things, often transported by water, wind, or ice.

Front

What causes sediment to be deposited in a river delta?

Back

The velocity of the river decreases, allowing sediment to settle out of the water.

Front

What is the process of melting and cooling in rock transformation?

Back

It is the process by which metamorphic rock can change into igneous rock when it melts into magma and then cools.