Observing Osmosis in Potato Cells Planning Purpose: To observe the effect of osmosis on plant cells. Hypothesis: The higher the salt content of the water‚ the lower the mass of the potato. Variables: Independent: the salt percentage of the solution Dependent: the weight of the potato in grams Controlled: the amount of water the length of time between measurements the method of measuring the type of plant cells tested Equipment: (as seen on 2A Human Biology task sheet)
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fellow classmates’ experiments would be recorded and added to our own results. The hypothesis was that more surface area exposed and smaller volume would result in a faster chemical reaction of the material. Since the Alka-Seltzer tablet would be less exposed and have a larger volume as a whole‚ the crushed tablet was thought to have a faster chemical reaction due to its small volume and larger exposure. The hypothesis was supported. The whole Alka-Seltzer tablet had an average of 7.80 seconds from
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within the right-handed group is 57.34% (N=36). The statistic for the left-handed group is 66.67% (N=3). My personal data matches with the class data (N=1). The findings do not support the experimental hypothesis. Discussion Both the class data and global averages do not support the hypothesis that the percentage of reports that chimeric faces with the younger left-halve will be smaller for left-handed participants. In fact‚ the opposite results have been obtained. This may indicate that the
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Does captivity affect the overall health of marine mammals? Research (2 Points) 1. The habitat‚ activities‚ diet‚ and behavior of marine mammals in the wild. 2. The habitat‚ activities‚ diet‚ and behavior of marine mammals in captivity. Hypothesis (4 Points) If a marine mammal is raised in captivity‚ then it may be healthier than a wild marine mammal but it may have behavioral problems. Procedure (4 Points) 1. Set up sampling area‚ in both wild and captive areas. 2. Tag and assess
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through examination. Secondly‚ one should form a hypothesis about what has happened from what they may know about the victim or what they have been able to gather from witnesses. Thirdly‚ collect data through observation and experimenting by this I mean to search for relevancy of a suspect’s background and witness statements. Next we need to compare the hypothesis and data compiled by evaluating the evidence found. If the data supports the hypothesis then a search for additional evidence may be needed
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GROWTH OF A RAPID CYCLING BRASSICA Hypothesis: The purpose of this experiment is to demonstrate the totipotency of cells‚ and how this enables them to take on new functions when it is required for them to do so; In the case of this experiment‚ the cells of the Brassica plant will have to adapt to form roots and new stem material etc‚ in order to grow. I hypothesise that this will be exactly what happens and the plants will grow as they normally would under natural circumstances and conditions
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Macromolecules of Life Hands-On Labs‚ Inc. Version 42-0085-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this
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Use a study guide only please and note two of the answers are wrong regarding conversions.!! Up to you to figure which ones. Just know its nice to compare answers to see if your on the right track. LAB 1 1. Describe the function of the following pieces of safety equipment and how each might be used: (10 points) a. Eye Wash (2 points) a. The function of the eye wash station is to flush your eyes of any chemicals or other harmful liquids you may have gotten in your eyes. You would
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it and the test tube. To further prove this theory I will have to continue with my other experiments. Experiment two: In this experiment I have put my two test tubes inside the fridge in order to simulate the sub zero air conditions. In my hypothesis I said that I thought there would be no difference between test tube one and two. In the first experiment it was proved otherwise‚ yet in the following experiment there will be a greater temperature change so the differences in temperature will
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