Erosion, Weathering and Deposition

Which description best describes the term 'erosion'?

• The breakdown or decay, but not the removal, of rocks and minerals at or near the surface.

• The process by which the land surface is worn down by running water, ice, wave action or wind.

• The movement and pressure which causes the shape of the land to change

• The geological process in which sediments, soil and rocks are added to a landform or land mass

Which description best describes the term 'weathering'?

• The breakdown or decay, but not the removal, of rocks and minerals at or near the surface.

• The process by which the land surface is worn down by running water, ice, wave action or wind.

• The movement and pressure which causes the shape of the land to change

• The geological process in which sediments, soil and rocks are added to a landform or land mass

Which description best describes the term 'deposition'?

• The breakdown or decay, but not the removal, of rocks and minerals at or near the surface.

• The process by which the land surface is worn down by running water, ice, wave action or wind.

• The movement and pressure which causes the shape of the land to change

• The geological process in which sediments, soil and rocks are added to a landform or land mass

Over long periods of time, deposition may change the Earth’s surface by .... (complete the statement)

• forming new land features.

• breaking down large rocks into smaller ones.

• washing away beaches.

• moving topsoil.

Deposition changes the Earth’s surface because bits of broken rock and soil .... (complete the statement)

• stop rivers from flowing.

• make rich farmlands.

• are deposited in new places.

• move very slowly.

Erosion has helped to form many interesting features of the Earth's surface including .... (complete the statement)

• mountain peaks, valleys, and coastlines

• deserts and plains

• islands and islets

• mountain and mountain ranges

Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of .... (complete the statement)

• weathering

• deposition

• erosion

• tectonic activity

How do plants weather rocks?

• During photosynthesis
• When roots grow into cracks of rocks and expand the rock breaks.
• When the plant moves water from the roots to the leaves, the rock breaks.
• Plants don't weather rocks.

What is the term given to broken up pieces of rock?

• dirt

• weathering

• sediments

• delta

How does planting grasses on the beach prevent erosion?

• It creates habitats for animals.
• It makes it less windy.
• The roots prevent sand from washing away.
• It prevents water from freezing.