An elementary laboratory study in soils elementarylabora01jeff Year: 1908 STUDY IN SOILS. 17 filled with water gives the weight of the volume of water which the can holds. One cu. inch of v/ater weighs .036 lbs. or grams. 5. Having the weight of the water which the can holds, estimate its capacity. Use a form hke the following: 1. Weight of can full of water 2. Weight of can, empty / Weight of water in can 3. Estimated volume of water in can in cubic inches From this point proceed as in soil-box experiment. Can you plan and execute an experiment by whick you can determine the weiyhi pe
An elementary laboratory study in soils elementarylabora01jeff Year: 1908 STUDY IN SOILS. 17 filled with water gives the weight of the volume of water which the can holds. One cu. inch of v/ater weighs .036 lbs. or grams. 5. Having the weight of the water which the can holds, estimate its capacity. Use a form hke the following: 1. Weight of can full of water 2. Weight of can, empty / Weight of water in can 3. Estimated volume of water in can in cubic inches From this point proceed as in soil-box experiment. Can you plan and execute an experiment by whick you can determine the weiyhi per cubic foot of field soils—soil under natural conditioyis? Experiment V. Water-holding Power of Soils.—Artificial. Apparatus and materials needed: 8 four-inch glass funnels. 1 package of 6-inch filter papers. 1 rack for carrying the eight funnels. (This rack may be made of a board 1 inch X 6 inches—5 feet long, with eight three-inch holes bored at distances of 7 inches apart center to center. The holes may be bored with an extension bit. When in use let this rack rest on supports six to eight inches high.) See Fig. 8. 8 four-ounce beakers or ordinary glass tumblers. 1 100 c. c. graduate cylinder. 4 lots of air-dry soil—a sandy soil, a loamy soil, a clay soil and a muck soil. Fig. s. i-unnels in place in simple wooden rack with beakers under tlie uinnels in experiment to study water-holding power of soils. The experiment: 1. Mount the eight funnels in the rack. 2. Fold a filter paper for each funnel, set in place and wet so that it will stay in place. 3. Weigh out and introduce into each of two funnels 100 grams of the sandy soil. 4. Weigh out and introduce into each of two other funnels 100 grams of the clay soil. 5. Weigh out and introduce into each of two other funnels 100 grams of loamy soil. 6. Weigh out and introduce into each of the two remaining funnels 50 grams of the muck, soil. 7. Place a beaker under each funnel.
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