How to erosion, weathering, and deposition

Weathering Definition: process of breaking down or disintegration of substances such as rocks and minerals by physical, chemical, or biological processes.

When it rains, the rain water wears down or weathers the black top. This means that the tar itself will wear down into what is called dirt sediments. This is when the tar is worn down so deep that

(Continued on) the dirt sediments underneath begin to push there way up and form on top of the black top. This is called a physical process, because the tar is being physically worn down by the rain.

As you can see all the rocks have different colors in them. Not one is completely solid. This is because each rock has been weathered or worn down. Each rock has been worn down by what we call a

(Continued on) chemical process. That's why each rock is made up of different colors because of the different chemicals that have gone into each rock. Different acids and chemicals that are combined

(Continued on) break down and cause the different colors.

This tree has been worn down by a physical process from animals such as bark beetles. These beetles eat away the bark on the trunks of trees. This is how the tree is in shreds. When they eat away the

(Continued on) bark on the trunk the tree is loosing all of the nutrients and the inside making it hollow. When this happens the tree is being weathered down and can no longer live.

Erosion Definition: - Erosion is the movement of sediment or soil from one location to another by means of water, ice, or wind.

When it rained onto the soil the dirt and the soil eroded onto the cement. When this happened the soil and the dirt from the grass had moved overtime and entered in between the cement cracks. This

(Continued on) shows that the rain eroded the grass which then pushed the dirt and soil to erode onto the cement.

This is when the rain and wind erode onto the side of the door. The rain then erodes onto the side causing it to break down and fall apart. The wind flies objects around smashing it into the side and

(Continued on) the water from the rain eroded it by pelting it with rain drops. This then makes the siding of the door fly off and move around throughout the wind.

When you look at this picture you wonder how does it apply to erosion. If you look closely you can see that the grass area of the creek is eroding into the water. This is due to the rain water pushing

(Continued on) the dirt and soil sediments closer to the water. The soil and dirt then erodes into the water eroding the the plants and then makes more dirt and soil in the water.

Deposition Definition: When particles carried by water, ice, or wind are deposited (dropped) in another location.

This tree has not always been there. No one ever planted it, it somehow grew there all by itself. Actually seeds fell from the tree in my backyard and they were deposited from the ground by the wind

(Continued on) and dropped onto the hill side. With rain water the seed grew a tree. When the wind picked up the seed and dropped it on the hill side no one ever touched it.

At first when these plants weren't there it was dry land and nothing was growing. Then when the wind blew and the seeds from flowers came off, the seeds then were dropped into the bare area and were

(Continued on) planted. This is from the rain water. From now on there are wild flowers growing back there and different plants. This is what is called deposition where one particle is picked up from

the wind or water and is dropped into another location. Now there are different types of plants and wild flowers growing back there.

Each seed that fell from the bushes and the leaves were picked up and deposited behind the fence. Overtime, rain water and sunlight planted a bush that no one helped grow. When this happens the bush

(Continued on) grew and grew. This is a type of deposition where one particle is picked up and grows on its own, without any help or treatment.

Conservation

This rock has been eroded. From different processes such as chemical, physical, and biological. Different machines are now moving these rocks.

These rocks are being weathered down and breaking down. From the rain and the wind. When people come such as scientist come and break down each rock. This then speeds up the process.

When these rocks are broken down by water, ice or wind the rocks wear down. When the wind picks up each rock it deposits it to another location. This is when drought takes place. This is because when

the rocks dry up they can crack and break apart. When they are dropped in dry areas. This is then harder to move the rocks.