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Transcript

Materials

3 wood boxes

3 cups with water

soil

1 timer

conclusion

our hypothesis was right the more time we put water the more soil erosion it will be

variables:

variables:

Time

5 minutes

10 minutes

15 minutes

Question

Recomendations

we want people to do what farmers do to prevent the soil erosion. The farmers do crop rotation. so they help the soil erosion by conserving it.

Observations

Box 1: The dirt started going down with the water and the channels started to look bigger.

Box 2:the dirt was getting to wet because of the water the channels where getting very large.

Box 3:This is the box used for 15 min. because of the big time running some soil went out and make more paths and bigger channels.

Procedure

1. We put the same amount of dirt in the boxes.

2. We put a cup with a hole so the water goes but not too much.

3.We let the water run and when it dries we observe the path that water left.

Research

Soil is a natural resource but the world is facing a big problem of erosion. When farmers long ago cleared fields to plant crops , they pulled out trees and native plants that kept the soil in place.

Sometimes wind and water carried away unprotected soil and let the land unsuitable for farming.

How does water cause soil erosion?

Hypothesis

We think that the soil will get too wet and the longer we add water to it, the more soil erosion we will see.

things we don

Soil Erosion

Members:

Manuela Uribe

Daniel Paiva

Pablo Gutierrez

Manolo Messa

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