Investigating The Relationship Between Molding Water Content And Dry Unit Weight Of Soils Essay

On the one hand, there is the effect of water content in the soil: due to its ability to store

It was hypothesized that if bean plants were planted in four different brands of soil (Jiffy, Miracle-Gro, Scotts, and Vigoro), then the bean plant in Vigoro-the most expensive soil-would grow the tallest. The experiment supported the hypothesis. The hypothesis was supported because the plant in Vigoro had a growth average of 5.74 cm at the end of week 4, the highest amount of growth out of the four brands of soil. This indicates that Vigoro was the brand that caused the best amount of plant growth in the bean plants. Vigoro Organic and Natural soil contains a 0.09% Nitrogen and 0.06% Phosphate content (“Vigoro” n.d.). Both of these components are vital in a plant’s growth. Plants require nitrogen, and phosphorus to be supplemented by soil (“Plant” n.d.).

Wash a crucible and cover. Heat in the coolest part of the flame for 3 minutes to dry. Allow to cool, then measure and record the mass of the crucible and cover in the data table.

A black sharpie was used to label the bag “3.1” which stands for test subject three (3), part one (1). The second bag was then labeled “3.2” which stands for test subject three (3), part two (2).This was then written on the outside of the bag. One (1) tablespoon of springfield tap water was measured and poured into a small, 4 ounce, plastic, rubbermaid tub. One (1) micro essential laboratory pH strip was taken and dipped half into mixture. The pH stip was dipped into the substance for one (1) second. After the pH strip was removed it was placed against the container the pH strips came in which contains a chart. This chart matches the color of pH strips to a certain acid or base value. Once the pH was lined up the pH value was measured and recorded, the mixture was taken and poured directly onto the towel. The bag was then zipped up while applying slight pressure to the bag, without touching the seeds, to let out most excess air. Finally the bags were carried with caution to the desired location that is exposed to 11 hours of sunlight including 5 direct sunlight hours. These steps were repeated once

I will measure the soil PH in 5 different places to get an accurate and reliable results.

Expectedly, the soil and a variety of dense particles settled to the bottom of the test tube. Using a pipette we drew water from the center of the sample, but making sure not to draw up any soil. Three separate slides were prepared, each

A random amount of soil, 40.00 grams, was chosen to be consistent throughout each section of the entire experiment. To gauge how much water would be needed to saturate the soil to 100%, two-times as much water was added to the soil, or 80 ml, and the mixture was stirred together. After waiting 1 minute, excess water was poured off, repeating the cycle until no more water was found to be pooling on the soil. The mixture was weighed and the original mass of the soil was subtracted from the current mass, producing the mass of the water at 100% saturation, or 61.25 ml. Sixty-one and one quarter mL was then multiplied by 0.25, 0.50, and 0.75 respectively to produce the amounts of water that would represent the soil at 25%, 50%, and 75% water saturation. These percentages were chosen because the extreme percentages, 0% and 100% saturation would have been avoided by the isopods

The first step of the experiment is to make sure the crucible and cover are clean by washing them off with water. To dry the equipment place on the clay triangle and leave in the hottest part of the flame for 3 mins. Once time is up, allow the crucible to cool. Once cooled, measure the mass of the crucible with the scale. The next step would be to break the 10cm magnesium ribbon into small pieces, and place these pieces in the crucible. Find the mass of the crucible and the contents. Place the cover on the crucible and lay on the clay triangle. Heat the crucible and contents gently for 2 minutes. After this time is up, tilt the cover to provide and air opening. Tilt the cover using the crucible tongs. Now, heat the crucible and contents strongly

In our density of wood lab, we were interested in learning more about densities of wood, how to measure density, the difference between softwoods and hardwoods, and how density and strength are related. In this lab, we utilized 10 different samples of wood blocks. By measuring each sample’s Volume (Length x Width x Height) and mass, we were able to determine each sample’s density (Mass + Volume). The chart below describes our findings.

There will be a control group which will get soil from the wetland and well water. There will be three more groups. One getting inoculated soil and well water. A second getting inoculated soil and well water with 672 mg/L Ca(NO3)2 and 372 mg/L K2HPO4 as used by Picard (7). These additives are common fertilizers in an agricultural setting and dissolve easily in water. The third will get wetland soil and well water with 672 mg/L Ca(NO3)2 and 372 mg/L K2HPO4. Each group will be replicated 10 times to get comparative results.

Wetland soils are extremely varied. They are found from the tropics to the subarctic. They can be seasonal or year-round, freshwater or saltwater, organic or mineral. The one thing that all of them have in common is that for at least part of the year they are saturated with water. This saturation has a significant impact on the soil's physics, chemistry, and biota. However, over the past century more than half of all the wetlands in the United States has been drained for agriculture and other uses such as construction. When the soils are drained the physics, chemistry, and biota are drastically changed. This paper is an attempt to

In lab 12 we learned the fundamentals behind performing Proctor tests. The purposes of these tests are to determine the relationship between the moisture content and the dry density of a soil, with the ultimate goal of obtaining the maximum density and optimum water content for a given soil.

Fill 1/2 the volume of the mould with concrete then compact by rodding 25 times. Cylinders may also be compacted by vibrating using a vibrating table.

The objective of this experiment is to obtain the grading curve for both fine and coarse aggregate.

Beier & Rasmussen (2008) reported that addition of nutrients and water to the soil augmented the decomposition rates significantly. The clay vertosol affected the rate of decomposition due to a developed content of organic matter, as there are additional microbes in organic matter-rich soils as it is important for the daily living of microbes. As the black vertosol soil (clay soil) has a higher water holding capacity and higher CEC, it can hold onto nutrients easily which can increase the decomposition rates. Treatments involving amendments added to the soil resulted in higher