Unit 5 Review- 2 answers

Front

What is chemical weathering?

Back

Chemical weathering is the process that alters the mineral composition of rocks through chemical reactions, often involving water, acids, or gases.

Front

What is physical weathering?

Back

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

Front

What is a transform boundary?

Back

A transform boundary is a type of tectonic plate boundary where two plates slide past each other horizontally, often causing earthquakes.

Front

What is a divergent boundary?

Back

A divergent boundary is a tectonic plate boundary where two plates move away from each other, leading to the formation of new crust, often seen at mid-ocean ridges.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate is forced under another, often leading to volcanic activity and the formation of mountain ranges.

Front

What are the main types of weathering?

Back

The main types of weathering are chemical weathering and physical weathering.

Front

How does chemical weathering affect rocks?

Back

Chemical weathering changes the mineral composition of rocks, which can lead to the formation of new minerals and the weakening of the rock structure.

Front

What role does water play in weathering?

Back

Water is a key agent in both chemical and physical weathering; it can dissolve minerals, transport sediments, and cause physical breakdown through freeze-thaw cycles.

Front

What is an example of physical weathering?

Back

An example of physical weathering is the cracking of rocks due to temperature changes, such as freeze-thaw cycles.

Front

What geological features are formed at divergent boundaries?

Back

Divergent boundaries often form mid-ocean ridges, rift valleys, and new oceanic crust.