English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

my science homework

2007-03-31 08:29:49 · 6 answers · asked by Anonymous in Science & Mathematics Earth Sciences & Geology

6 answers

Weathering breaks little particles off of big pieces like rocks. Erosion carries those broken off pieces away.

Examples:
Ice forms in the cracks of rocks and breaks the rocks. That's weathering.
Flowing water carries the broken pieces of rock away. That's erosion.

2007-03-31 08:34:03 · answer #1 · answered by ecolink 7 · 1 1

Chemical, and mechanical weathering are two processes by which weathering( a destructive process ) occurs. Erosion is the result of the change. For instance, water at the top of a mountain freezing in a crack of a rock will expand the crack. Each freeezing cycle widens the crack such that more water can fit in it. During subsequent freezing cycles, it will expand again, and again. Eventually the rock will fragment under the outward mechanical pressure exerted by the freezing ice until it breaks off. Under the influence of gravity, the resulting jagged rock fragment will roll down the mountain. Every single impact that that tumbling, jagged rock makes on its way down the moutain causes it to chip, and in turn, to chip every other rock it hits on the way down. The resulting smoother rock is called eroded( smooth). Flowing river water has great kinetic energy also, and as it rubs against the river's banks( weathering ), it erodes them. Basically weathering is a wearing down process. Sanding wood is another. Getting to the center of a Tootsie Pop is mechanical weathering.

Chemical weathering is the net change in the chemical composition of a substance, such as acid on limestone. Salt spread on the road in winter to melt road ice, causes the chemical weathering of the metals in structures, cars, trucks, buses, trains, and planes that come into contact with them. The oxide( rust ) of those metals is the net chemical change, or the result of the chemical weathering. Concerning metals, we say they are corroded. Think of what happens to the Toostsie Pop in your stomach as chemical weathering.

2007-03-31 09:07:42 · answer #2 · answered by George R 3 · 0 1

Weathering breaks down the surface of the piece, erosion tears away at the makeup of the piece.

2007-03-31 08:33:38 · answer #3 · answered by Anonymous · 0 1

Weathering is the process of breaking down rocks, soils and their minerals through direct contact with the atmosphere. Weathering occurs in situ, or 'without movement', and thus should not to be confused with erosion, which involves the movement and disintegration of rocks and minerals by processes such as water, wind, ice, hail and gravity

2007-03-31 08:38:07 · answer #4 · answered by xxmexx 4 · 1 1

It is a cause and effect relationship ....the cause is weathering and the effect is erosion

However weathering is only one of many causes for erosion.....

2007-03-31 08:34:01 · answer #5 · answered by ccseg2006 6 · 0 1

Download Weather Toolbar - Instant weather reports, forecasts, and radar images anytime for free - http://surl.in/HLWTD261252BMRMTGQ

2007-04-01 00:09:24 · answer #6 · answered by victor 3 · 0 1

fedest.com, questions and answers