Grade 4 Module 3 Twig

Front

What is the oldest layer of rock likely to contain?

Back

The layer containing trilobites.

Front

Where does sediment in a basin typically come from?

Back

The mountain wearing down.

Front

Do oceans and streams continue to change landscapes today?

Back

True.

Front

What factors could have caused the disappearance of parts of the Great Wall of China?

Back

Wind, rain, humans, and plants.

Front

How long can erosion take to significantly change a landscape?

Back

Many millions of years.

Front

What are trilobites?

Back

Trilobites are extinct marine arthropods that lived hundreds of millions of years ago.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water.

Front

What is sediment?

Back

Sediment is small particles of rock, soil, and organic material that are transported by water, wind, or ice.

Front

What role do humans play in erosion?

Back

Humans can accelerate erosion through activities like construction, deforestation, and agriculture.

Front

What is the Great Wall of China?

Back

The Great Wall of China is a series of fortifications built to protect against invasions, stretching over 13,000 miles.