Wonders of Science Patterns of Change

Patterns of Earth's Changing Features - Review

Multiple Choice

Flowing water can create valleys.

• True

• false

True

Flowing water can create valleys.

Multiple Choice

Very large boulders do not breakdown over time; only smaller ones do.

• True

• False

False

Very large boulders may breakdown over time due to the effects or weathering, like at the Devils Tower National Monument.

Multiple Choice

Chemical weathering does not change the minerals in rocks.

• True

• False

False

Chemical weathering may change the minerals in rocks.

Multiple Choice

Moving water is one cause of erosion.

• True

• False

True

Moving water is a cause of erosion.

Multiple Choice

Which is most like a glacier changing earth's surface?

• a bird drinking water from a puddle

• a boy raking leaves into a pile

• a speeding race car

• a bulldozer pushing and piling anything in its path

A glacier is like a bulldozer.

As glaciers grow they push soil and rocks. As the glacier melts, it lifts soil and rocks and moves them.

Multiple Choice

Which of the following does not cause a quick change to the Earth's surface?

• earthquake

• erosion

• avalanche

• landslide

Erosion

Erosion is the weathering and removal of rocks and soil. This occurs over a long period of time.

Multiple Choice

Gravity pulls rainwater downhill and the flowing water erodes the landscape by

• forming sand dunes

• washing away soil

• forming a desert

• forming moraines

Gravity pulls rainwater downhill and the flowing water erodes the landscape by washing away soil.

Multiple Choice

The weathered rocks found along the side of a stream were likely place there by

• deposition

• transport

• erosion

• weathering

deposition

The weathered rocks found along the side of a stream were likely placed there by deposition. Deposition is the dropping off of eroded soil and bits of rock.

Multiple Choice

What happens during physical weathering?

• It snows.

• Rocks are chemically changed into limestone.

• The size and the shape of rocks are changed.

• Rust is created from the combination of water and air.

The size and the shape of rocks are changed during physical weathering.

Open Ended

Anna goes to the same beach with her family every summer. This year, she noticed that the beach was smaller than last year. What might have caused the beach to change over the years?

Wind and water may have eroded the beach.