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1) 2-4 cups each of several soil types (sand, loam, clay, etc.)
2) aluminum Pans ( 2 or 3)
3) large funnel
4) large measuring cup
7) 1/2 Gallon plastic milk carton (a 2 liter soda bottle works also), one for each soil sample
Before you Start:
1) Put many very small holes at the bottom of your empty milk jug. ( A jug for each sample) Make sure you cut the top off of your jug.
2) Get your samples of dirt.
3) Fill your jug half way to the top with your soil. Be sure to put the same amount of the different soils in each jug. Label your soil types.
Now it's time for your
1) Hold the jug of soil over an aluminum pan and very, very slowly pour a measured amount of water on the soil allowing the soil to soak up the water.
2) Now collect the drainage of the water in the aluminum pan and slowly pour it back through the soil. Measure the amount of water that drained through. Subtract from the original amout to calculate how much water the soil absorbed. Record your results
3) Repeat the process with several types of soils. Which soil holds the most water? The least? Why is this important to know?
4) Test your local soil. Send us the results. (See the Visitors' Page)