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Soil types and water retentionFeatured science projectScience project video

Observation

It is observed that  pot C with the silt had retained the most water. It had the least amount of water in the collection container and the biggest increase in soil weight.  Pot A containing the sand was the poorest in water retention with almost all the water drained into the collection container and showing only a small increase in weight.

Soil type

Initial pot weight (g)

Final pot weight (g)

Weight difference (g)

Amount of water in collection container (ml)

Sand

1442

1456

14

186

Clay soil

1328

1454

126

74

Silt soil

1376

1559

183

17

The chart below represents the results of our science experiment.

Soil types and water retention experiment

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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.