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Topics  > Biology > Botany

Soil types and water retentionFeatured science projectScience project video

Conclusion

The hypothesis that between clay, sand and  silt, silt will  retain the most water is proven to be true.

Soil water retention is very important for the continual growth of plants and the survival of the various organisms living in the soil. It also helps reduce soil erosion.

Also consider

What would happen if the science fair project was repeated using mixtures of  different soils?

The science fair project can be repeated using different amounts of water and soils from different locations to compare the results.

References

Water retention - http://en.wikipedia.org/wiki/Soil_water_(retention)

Types of soil - http://lifestyle.iloveindia.com/lounge/types-of-soil-3119.html

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Complexity level:
6
Project cost ($):
20
Time required:
2 day to prepare, 4 hours for the science project experiment
Material availability:
Easily found
Safety concerns:

Basic safety requirements.