Weathering Erosion and Deposition in Nature

The video tutorial explains the processes of weathering, erosion, and deposition. Weathering involves breaking down rocks into smaller pieces through natural forces like wind, water, and ice. Erosion is the movement of these broken pieces, or sediments, from one place to another by wind or water. Deposition occurs when these sediments settle in a new location, forming features like sand dunes and deltas. The video provides examples and visual aids to help understand these geological processes.

What is the process called when rocks are broken down into smaller pieces?

• Erosion

• Weathering

• Deposition

• Sedimentation

Which natural force is responsible for making rocks smooth over time?

• Ice

• Earthquakes

• Water

• Wind

How do glaciers contribute to the weathering of rocks?

• By carrying rocks to new locations

• By grinding and breaking rocks as they move

• By depositing sediments

• By melting and refreezing

What happens to water in rock cracks when it freezes?

• It remains unchanged

• It evaporates

• It contracts and makes cracks smaller

• It expands and makes cracks larger

What is erosion?

• The formation of glaciers

• The breaking down of rocks

• The carrying away of sediments

• The deposition of minerals

Which of the following is a common cause of erosion in deserts?

• Earthquakes

• Ice

• Wind

• Water

What is deposition?

• The carrying away of sediments

• The formation of glaciers

• The breaking down of rocks

• The dropping of sediments in a new place

How are sand dunes formed?

• By earthquakes shaking the ground

• By ice melting and refreezing

• By wind blowing sand and depositing it

• By water depositing sand

What happens to sediments when a river slows down as it enters a lake or ocean?

• They are carried further downstream

• They freeze

• They settle out and are deposited

• They evaporate

What is a delta?

• A process of erosion

• A type of glacier

• A landform created by deposition at a river's mouth

• A type of weathering