Science DA Review

Front

What is a valley?

Back

A valley is a low area of land between hills or mountains, often formed by the action of glaciers.

Front

What is a paleontologist?

Back

A paleontologist is a scientist who studies fossils to understand past life on Earth.

Front

Where are most fossils formed?

Back

Most fossils are formed in sedimentary rock, where organisms are buried in sediment.

Front

How does freezing water affect rocks?

Back

Freezing water expands cracks in rocks, which can break them apart.

Front

How does wind cause weathering?

Back

Wind causes weathering by blowing sand against rocks, wearing them down over time.

Front

What is weathering?

Back

Weathering is the process of breaking down rocks into smaller pieces by natural forces.

Front

What is erosion?

Back

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

Front

What role do glaciers play in shaping landforms?

Back

Glaciers carve out valleys and shape mountains as they move and melt.

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from particles of sand, shells, and other fragments that are pressed together over time.

Front

What is the difference between weathering and erosion?

Back

Weathering breaks down rocks, while erosion moves the broken pieces away.