Constructive and Destructive Processes

Constructive Process Things that happen to the Earth that build it up or make positive changes.

Destructive Process Things that happen to the Earth that destroy or break down part of it.

Erosion A destructive process where materials are removed from the surface of the Earth and then deposited elsewhere.

Weathering A destructive process where rocks, soil, and minerals are broken down through contact with atmospheric conditions. (physical and chemical weathering) Physical Chemical

Deposition A constructive process where sediments are added to land and build it up from previously eroded sediments

Floodplains Flat land beside a river or stream that stretches to a valley or mountain wall causing flooding during high periods of rain. Which Landform is a floodplain? 1 2 3 4

Deltas A landform that is formed at the mouth of a river where it flows into another body of water and sediments are deposited there. Which Landform is delta? 1 2 3 4

Moraines An accumulation of soil and rock that is formed by moving glaciers Which Landform is a moraine? 1 2 3 4

Earthquakes A constructive process that results in a sudden release of energy in the Earth’s crust where plates slip and move and displacement of land occurs. Before: After: The earthquake that hit Japan in 2011 moved the coast line.

Volcanoes A constructive process where an opening in the Earth’s surface ruptures and allows magma, ash, and gases to escape.