Take the raisins out of the beakers and try a different object, such as a paperclip or cork. Does it sink or float? Write down what happens to the raisin in each beaker. (If you are using glass jars, use 2/3 cup of liquid, which is approximately 150 ml.) Pour 150 ml of water into beaker #1, 150 ml of corn syrup into beaker #2, and 150 ml of vegetable oil into beaker #3. Because these liquids will have different densities, there will be a density tower, or different layers, that are visible, sort of like being able to see ice cubes (frozen water) in room temperature water. Write down what you think will happen when you place each object into the three different liquids based on your guess of the density of liquids. Will a raisin, paperclip, penny, small cork, ball of paper, and other small objects sink or float if they are placed in water, corn syrup (or light corn syrup), and vegetable oil? several small objects - raisins, paperclips, pennies, small corks, etc.vegetable oil (you can also experiment with various types of oil, i.e.3, 150 ml beakers (or use glass jars or clear plastic cups).Use these science projects as a foundation and then come up with unique ideas of what to test to make it your own.įrom 5-year-olds to high school students, this cool science activity to test varying densities is engaging for all ages. These experiments can make a good liquid density science fair project as well. rubbing alcohol to determine which is denser. You can perform several science experiments with liquids of different densities such as dish soap vs. This is due to the atomic structure of the elements, molecules, and compounds that make it up. If you compare rock and a cork that is the same size (meaning they have equal volume), which is heavier? The correct answer is the rock because it has more mass. There are many science experiments that help us see how various items have different densities. An object's density is determined by comparing its mass to its volume. However, organic soils tend to fall below the range of the typically values,which my soil demonstrated with a specific gravity of 1.39.Great science comes in all shapes and sizes, but we understand and seek to further understand science by asking ' why?' For example, why do objects that are the same size sometimes have different weights? The answer has to do with their density. My specific gravity value did not meet the typical values for regular soil which has specific gravity range of 2.65 to 2.8. The sample soil that was obtained was highly organic with a specific gravity of 1.39, exhibited that the soil was lighter than water. The purposes of the specific gravity was to observed and recognized the relationship of the sample soil to water. A summary table of the phase diagram with specific gravity The method,equations, and sample calculations to find the values for the phase diagram.įigure B-3. The Phase diagram of the sample of soilįigure B-4. The specific gravity lab data that was calculated throughout the labįigure B-2. Lastly,a summary table of the values that were on the phase diagram are shown in figure B-4 with the Specific Gravity highlighted in neon yellow.įigure B-1. Figure B-3 is a construction of the phase diagram with the recorded values being shown in red while the calculated value is being shown in blue.The phase diagram was constructed to indicate the proportions of solid, water, and air in the soil sample. The methods, equation, and sample calculations for the phase diagram is shown on figure B-2. Figure B-1 are the specific gravity lab values that were record for the lab and the table below it were the calculated values that were found from the record data. As a result, the mass of the soil divided by the volume of the soil time the density of the water determined to the specific gravity. After recording the weight of the pycnometer+water+soil, the next step was to record the weight of the pycnometer + water without any soil. Next water was added into the pycnometer with the sample soil than the weight was recorded. Once obtaining a soil without any undesirables, 50 grams of the sample soil was poured into the pycnometer. The soil sample was put through a #4 sieve to subtract unwanted materials on the soil. Prior to performing the specific gravity lab, the soil sample that was obtained from Karl’s background was put under an oven for 24 hours.
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