Question: Mark an X next to each of the following that can cause more erosion in a streamtable experiment. (Use a water source with a bigger hole.) Use a water source with a smaller hole.  Make the slope flatter. (Make the slope steeper.) Explain why your choices cause more erosion.
Reference answer: A bigger hole puts more water in the stream. Increased flow moves more earth materials, increasing erosion. A steeper slope makes the water flow faster. Faster flow moves more earth materials, increasing erosion.

Student answer: Because if you make them flatter it might take a while but if you make it steeper it might be easier.

Student answer: If you use a bigger hole more water come out at once like a raging river, if the slope is steeper the water will push through the earth material faster.

Student answer: Because they both are stronger, flows harder and flows faster than the rest.

Student answer: The happen when you do the experiment.

Student answer: I chose these choices because the bigger hole would work because more water would make earth material wear away faster. I think the slope flatter the water would come down really fast.

Student answer: Because there all can go steeper.

Student answer: I think these will cause more erosion because with a bigger hole more water and with the slope steeper more faster.

Student answer: Because I saw it.

Student answer: Because too much water comes and because it needs to be steeper so not much water comes.

Student answer: Because if we use a source with a bigger hole it will drop faster and makes it slope steeper.

Student answer: Because slope because make thing steeper and.

Student answer: The water pressure will be harder, so if that happens it will create a bigger canyon and delta. Erosion.

Student answer: I chose source with a bigger hole and make the slope steeper because the hole would make the water come out more with water to make slope steeper because so the water will get more speed and to make more erosion.

Student answer: Because when you use a bigger whole the canyon is deeper and when you have a slope all the water forms a canyon.

Student answer: If you make a bigger hole then the water will be faster and erosion will too. And if you make the slope steeper then the erosion will become bigger and wider.

Student answer: Because we did not experiment like that and it worked it did the same thing we marked.

Student answer: I chose the ones I did because you the water to flow not slower.

Student answer: Why a bigger hole makes more erosion is because there is more water coming at once. The reason to make the slop steeper is so the water will go much faster.

Student answer: More water can cause more erosion because so much water is flowing through at a time. Also a steeper slope because the water will flow a lot faster.

Student answer: Steep slopes can have landslides, faster water can gush. To be a flood plus massively erode.

Student answer: If you use a water source with a bigger hole, more water will come out which will cause erosion. If you make the slope steeper, the water will run down faster.

Student answer: The erosion will happen faster because the flow of the water is stronger and faster so the material will be worn down more.

Student answer: I choose water source with a bigger hole because the more water the more momentum to destroy. I chose a slope because the water will travel fast.

Student answer: A bigger water hole would allow more water to come through faster. Making the slope steeper and water would run through faster.

Student answer: More water will make it faster to erode, a steeper hill will make it go faster down hill.

Student answer: Well, they change the way erosion goes faster or lower and if it slides or not.

Student answer: My house because more erosion because it is a greater mass.

Student answer: So everything would happen quicker and better.

Student answer: My choices cause more erosion because with a bigger hole more water comes out faster and when the slope is steeper the water goes down faster and very powerfully.

Student answer: My choice increases water speed and the faster something is going the more it can hold.

Student answer: Because the more water going at a faster pace because of the slopes will cause more erosion because gravity will help slope.

Student answer: If the hole is bigger that will cause a flood. More water the more velocity causing more erosion. Also if make the slope steeper that will cause the velocity to be greater causing more erosion.

Student answer: My choices cause more erosion because if you have a bigger hole more water can pour through and if the slope is steeper water will come down harder.

Student answer: They cause more erosion because there is more water flowing out the hole making a flood and when it is elevated it makes the water move faster moving more sediment.

Student answer: Making a bigger hole causes more water which makes it flow faster causing more erosion. Also having a steep slope makes water flow faster causing more erosion.

Student answer: A bigger for the water's source and cause erosion because there is more water than usual. Then if you have a steeper slope it will cause the water to flow faster than usual.