Cartesian Diver Essay The Cartesian Diver is named after the French scientist Rene Descartes. This experiment is supposed to show buoyancy‚ density and different forms of matter at work‚ when demonstrated. To create the Cartesian Diver‚ you’ll simply need: • A empty plastic bottle • A plastic eye dropper • Water 1. Fill the bottle with water‚ but be cautious of spills. 2. Very carefully‚ drop the dropper inside the bottle. Then‚ seal the cap on very tightly. 3. Squeeze the bottle‚ but not too
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For this experiment‚ there were four onion bulbs labeled A‚ B‚ C‚ and D. Bulbs B‚ C‚ and D were each immersed in a different concentration of coffee. Bulb A acted as the control because it was not immersed in any concentration of coffee; instead‚ the onion roots grew in water. The following is a list‚ in order‚ of the concentration of caffeine bulbs B‚ C‚ and D were in: 0.1%‚ 0.3%‚ and 0.5%. Four test tubes were gathered to set up the experiment‚ each holding an onion bulb. After each day‚ every
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decreased with time. This happened because the difference in water potential between the inside and the outside of the beetroot time decreased as the experiment proceeded. Osmosis occurred most in distilled water because this contained the highest water potential when compared with the other beakers. Five concentration were used in this experiment in an attempt to try to find the concentration of sugar inside the beetroot. If such concentration was used there would have been neither a decrease an
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100= 10% Iron 1.9 1.9/6 * 100= 31.7% Sand 1.1 1.1/6 * 100= 18.3% Benzoic Acid 0.5 .5/6 * 100= 8.3% Salt 1.4 1.4/6 * 100= 23.4% Total 6.0 100% Questions: 1. How did your proposed procedures or flow charts at the beginning of this experiment compare to the actual procedures of this lab exercise? I had to change the process I did things a little to allow adequate time for the sand and the benzoic acid crystals to dry on the paper towels‚ and for the water in the paper cup to evaporate
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within the horse which will then lead the horse to stop drooling (McKinley‚ 2016). C.) Experiment: The purpose of this experiment was to test which variables affected the horses sympathetic nervous system leading the horse to stress and drooling. There were multiple variables tested such as the dilation of the horses eyes‚ if the horses ears were up and lastly if the horse drooled. In order to conduct this experiment‚ we had one horse getting honked at by a car and then testing those variables to
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Title : Centripetal force Objective To measure the centripetal force for whirling a mass round a horizontal circle and compare the result with the theoretical value given by F = m(2r . Apparatus 12 slotted weights with hanger (0.02kg each) 1 rubber bung with nylon string about 1.5m 1 glass tube about 20cm long 1 triple beam balance 1 meter rule 1 stop watch Several small paper markers Theory When a mass m attached to a string is whirled round a horizontal circle of radius r‚ the
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Methods: The specific experiment used to test our hypothesis was that we used regular soda and used diet soda as a control‚ to test the difference in increase in blood sugar levels‚ and the difference how blood glucose levels change over time‚ between a non-sugar filled drink and
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This experiment tested the growth of E.coli with inserted plasmid on an agar plate with Ampicillin. One colony of E.coli resistant to Ampicillin was grown during this experiment. The overall goal of the experiment was to successfully grow E.coli on the agar plate‚ which would show that the plasmid had been effectively inserted into the bacteria’s genes. This experiment helped students understand how plasmids were inserted into bacteria and used in real life situations. It also showed how the bacteria’s
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compensation for participating in this experiment. These participants were divided into six groups based on where they were sitting. Design The Stroop Test was used in order to test the effect of interference on reaction time. This was done by using three different types of slides‚ each with either 20 words or 20 colored boxes‚ and recording how many words participants could read the color of‚ rather than the word itself. The colors used in this experiment were red‚ green‚ blue‚ purple and brown
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William Edwards Deming was a master of quality improvement. His demonstration called the “Red Bead Experiment” was an amazingly simple‚ but effective way to highlight some problems in quality management. The example‚ which he used in many of his seminars‚ involved a batch consisting of approximately 80% white beads and 20% red beads. A group of willing workers were trained to use paddles that collected samples of beads for quality testing. The workers showed their paddles to managers who would then
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