2 Qtr Summative

Front

What is erosion?

Back

Erosion is the movement of soil and rock from one place to another, often caused by wind, water, or ice.

Front

What is weathering?

Back

Weathering is the process that breaks down rocks and other materials on Earth's surface into smaller pieces.

Front

How does mechanical weathering affect chemical weathering?

Back

Mechanical weathering increases the rate of chemical weathering by breaking rocks into smaller pieces, exposing more surface area for chemical reactions.

Front

What happens to rocks when they are hit by acid rain?

Back

Acid rain can create tiny cracks in rocks, making them more likely to break apart.

Front

Why is the fossil record incomplete?

Back

The fossil record is incomplete because fossils can erode over time, most organisms never become fossils, and scavengers and decomposers can consume them too quickly.

Front

What does it mean if a rock has round edges?

Back

If a rock has round edges, it indicates that it has been weathered, as sharp edges are typically found on newly broken rocks.

Front

What is the difference between erosion and deposition?

Back

Erosion is the process of moving soil and rock, while deposition is the process of laying down or settling materials in a new location.

Front

What role does water play in erosion?

Back

Water can erode soil and rock through processes like rainfall runoff, river flow, and ocean waves.

Front

What is the impact of vegetation on soil erosion?

Back

Vegetation helps to prevent soil erosion by stabilizing the soil with roots and reducing the impact of raindrops on the soil surface.

Front

What is chemical weathering?

Back

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