Understanding Weathering and Erosion

Which of the following is an example of chemical weathering?

• Frost wedging

• Oxidation

• Thermal expansion

• Biological activity

How does water cause erosion, and what is an example of a landform created by this process?

• Water dissolves minerals, creating caves.

• Water carries sediment, forming deltas.

• Water freezes and expands, breaking rocks.

• Water evaporates, leaving salt deposits.

Which of the following is a type of physical weathering?

• Hydrolysis

• Carbonation

• Exfoliation

• Oxidation

How does water cause erosion, and how is this different from weathering?

• Water causes erosion by washing away soil and rocks, while weathering breaks rocks into smaller pieces.

• Water causes erosion by carrying away bits of rock, while weathering changes the rock's minerals.

• Water causes erosion by freezing and cracking rocks, while weathering is caused by plants and animals.

• Water causes erosion by drying up, while weathering happens when rocks rust.

What is the first step in the scientific method?

• Question

• Hypothesis

• data

• Experiment

Which step in the scientific method helps you find out if your guess was right?

• Making a guess

• Doing a test

• Looking at the results

• Deciding if your guess was right

What process helps create a river delta?

• Breaking down rocks (Weathering)

• Wearing away land (Erosion)

• Dropping off sediments (Deposition)

• Changing from solid to gas (Sublimation)

How can the scientific method help us learn about how water causes soil to wash away?

• By looking at soil and guessing how it might wash away.

• By making a guess about how fast soil washes away and testing it with simple experiments.

• By studying old records and making guesses.

• By asking people what they think about soil washing away.

Which of the following is an example of biological weathering?

• Acid rain dissolving limestone

• Tree roots breaking through rock

• Water freezing in cracks

• Wind carrying sand particles

How can we use the steps of the scientific method to study how chemicals change monuments over time?

• By watching how monuments change and guessing what chemicals might be involved.

• By doing tests to see how chemicals affect rocks and looking at the results.

• By checking the weather and making guesses.

• By asking experts what they think.