8th Grade Science Project Ideas With an Experiment
Science projects are a great opportunity for students to impress their teachers and fellow classmates with their knowledge and creativity. For many students, 8th-grade science class is when they begin to learn the basics of chemistry, which opens the doors for more interesting science projects than previous grades. For a lot of children, coming up with an idea for an experiment is the hardest part of the project.
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Super-Chill Ice Water
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This experiment demonstrates the second law of thermodynamics. By adding table salt to an ordinary bowl of ice water, the freezing point of the water is reduced, making it much colder than it would normally be. Conduct this experiment by mixing different amounts of salt and ice water in separate containers and then measuring their temperature to determine which salt-to-water ratio is the best for reducing the freezing point.
What Are the Boiling Points of Different Liquids in a Vacuum?
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This is another experiment that demonstrates the laws of thermodynamics. The boiling point of a liquid changes when the pressure of the atmosphere is reduced. This experiment is conducted by placing a glass full of liquid with a thermometer in it under a bell jar, and using a vacuum pump to remove air from the jar, reducing the atmospheric pressure. Once the liquid is placed under the jar, begin pumping the air out. When the liquid begins to boil, record the temperature of the thermometer and the reading on the pressure gauge of the vacuum pump. Then make a comparison chart of the different liquids and at which temperature and pressure they reached their boiling points.
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Which Fibers Will Absorb Natural Dyes the Best?
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Natural dyes can easily be made from coffee, tea and other food items, such as cranberries, but only certain fibers will absorb them well. Begin by purchasing fabrics and yarns made from different fibers at a crafts store. Then make your dye from coffee, tea or berries. The dye is produced by boiling your dye material in water until it reaches the desired color, then pouring the water through a strainer. Separate the dye into a different container for each fiber, then allow the fibers to soak in the dye overnight. Remove the fabrics from the dye and rinse them under cold water until the water runs clear, then hang dry them until they are completely dry. Compare the fibers to determine which ones absorbed the dye the best.
Which Soda Does the Most Damage to Tooth Enamel?
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Dentists tell their patients not to drink soda because the sugar and acid in the beverage deteriorate tooth enamel, which causes cavities to form. Egg shells are very similar to teeth because they are made of calcium, so for this experiment they can be used as a suitable substitute for real teeth. Conduct the experiment by purchasing a variety of different sodas and pouring one of each soda into a separate glass. Hard boil one egg for each different soda, then place one egg in each glass. The soda will begin to slowly deteriorate the egg shells. Check on the eggs once every hour and keep a record of how quickly each soda is dissolving the eggshell.
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Comments
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I'm using the super chill ice thing.
