Amplify Science Grade 4 Unit 3 Chapter 1 Earth's Features

Front

What is sediment?

Back

Sediment is small pieces of rock, such as silt or sand, that are carried by water, wind, or ice.

Front

True or False: The environment of Desert Rocks National Park has always been the same.

Back

False

Front

What happens to sediment over time?

Back

Sediment builds up and can push down on the layers below it.

Front

What is an observation?

Back

An observation is a statement based on what you see, such as 'the size of the fossil was large and very long, about 6.5 feet.'

Front

What does it mean to cement sediment together?

Back

Cementing sediment together means that the particles stick together to form a solid rock.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of a living organism from the past.

Front

What is the process of sediment becoming sedimentary rock?

Back

Sediment can become sedimentary rock through the processes of compaction and cementation.

Front

What is the difference between observation and inference?

Back

An observation is what you see, while an inference is a conclusion drawn from observations.

Front

What role does water play in the formation of sediment?

Back

Water can carry sediment and help in the process of erosion and deposition.

Front

What is erosion?

Back

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