Matter
A river flowing downstream is an example of moving surface water.
Sediments eroded from mountainsides and transported in streams are an example of the conservation of mass. The total amount of sediment that is eroded from the mountainside remains constant as it is transported by streams to other locations.
No, the erosion of soil by wind is not an example of friction. It is a process where soil particles are detached and transported by the force of wind. Friction, on the other hand, is a force that resists the motion of surfaces sliding against each other.
An example of a sediment found along a stream is sand. Sand particles are typically larger than silt or clay and are commonly found in streambeds or along the banks of rivers and streams. They are transported by the flowing water and deposited when the flow velocity decreases.
An example of weathering is when rocks break down into smaller pieces due to wind or water. Erosion occurs when these smaller pieces are transported and deposited in a different location by natural forces such as rivers or glaciers.
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When rick is weathered and transported downstream, this process exemplifies the conservation of mass. As material breaks down and is carried away, the total mass remains constant, even as it changes form and location. This principle underscores the idea that matter is neither created nor destroyed but merely transformed and redistributed in the environment.
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The American Appalachian mountains a a good example of weathered mountains.
Physical and chemical erosion/weathering, followed by transport and finally sedimentation. Transport is not always occuring, it is possible that eroded particles are sedimentated in situ. Also, it is higly likely that during transportation, eroded particles are even further significantly eroded/weathered. For example, when a boulder is transported downstream, it's roundness increases with time/distance travelled.
Recording of the phone conversation.