the volumetric flask until it reaches exactly 100 millimeters. Cover/seal the top opening of the volumetric flask with parafilm and mix the solution by placing your thumb on top of the parafilm and flipping the flask back and forth (wait for the bubbles to appear) until the solute has completely dissolved. Split the solution in half by measuring out 50 mL of the solution into a beaker and give the solution in the volumetric flask to the other group. Once the 50 mL of CaCl2 solution from the other
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proteins in the extract layer so that they aren’t mixed in with the DNA extract. Cold alcohol is important because it helps the DNA become more visible. Materials: * Zip lock sandwich bag * 1 ripe strawberry * Lysis buffer * Coffee filter * Graduated cylinder * Isopropyl alcohol * Freezer * Test tube * Plastic stirrer * Scissors Procedure: 1. Obtain 1 fresh strawberry. Remove any of the leaves if they are attached. 2. Place the strawberry in the zip
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Guidelines for writing laboratory reports Laboratory reports should be written according to the format below (failure to do so will result in marks being deducted): Formatting Font Type: Times Roman Font size: 12 Spacing: 1.5‚ justified Pages : 5 (minimum) - 10 (maximum) [pages must be numbered] Title page You are required to use the lab report submission page available on the LMS and are to include these details: lab no.‚ title of experiment‚ students’ names and ID‚ date of experiment as well
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be replaced periodically. Activated alumina devices can accumulate bacteria‚ so treated water may have higher bacteria counts than raw water. The advantages of Activated Alumina filters include: 1. An effective way to reduce levels of fluoride‚ arsenic‚ and selenium The disadvantages of Activated Alumina filters include: 1. The use of other treatment methods would be necessary to reduce levels of other contaminants of health concern. Sl.No | FEATURE | ADVANTAGE | BENEFITS
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that if the light intensity increases‚ the rate of photosynthesis will increase at a proportional rate. Variables: Constant VariedMeasured ShootLight intensityRate of photosynthesis Number of lightsDistance between light and pondweedNumber of Bubbles Water ------ Time between each result recording ------ Materials: - Beaker almost full of water - Pondweed - 60 watt Lamp - Ruler - Stopwatch - Short-stemmed Funnel - Test Tube -paper clip -pure CO2 Method: 1. First clip that end of
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Patrick Kelly 10/16/12 Physical and Chemical Changes Lab Question: How do you distinguish a physical and chemical change? Hypothesis: If we use these materials and use magnets‚ water‚ burners‚ and filters on the mixtures and elements given we should determine what kind of effect these materials given will have on these mixtures and elements‚ physical or chemical. Procedures: -Part A: Record all observations of Part A in Data Table 1 1. Label each substance on seven pieces of paper
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Wildman method. It is also called Light filth flotation method since the food will remain in the aqueous layer and settle at the bottom while light filths are collected in the oil layer at the top. So after separation light filths are collected on filter paper and observed under microscope. Rodent hairs and insects legs were found indicating the presence of light filths. Introduction Analysis for extraneous matter is an important element both in the selection of raw materials for food manufacturing
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water)‚ 4 coffee cups‚ cheesecloth to filter the potato extract‚ a wax pencil or Sharpie marker‚ a ruler‚ scale or balance‚ 250 ml graduated cylinder‚ and oven mitt or tongs. Methods: 1. Research (online) the reaction between catalase and hydrogen peroxide and be familiar with the reactants‚ products‚ and enzyme. You will include the overall reaction in your lab report for this experiment. We will measure enzyme activity by measuring the height of the bubbles produced. 2. Prepare the potato extract
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This batch however seemed kind of odd‚ because no matter what did‚ the bubbles of the boiling sap kept on rising all the way to the peak of the pan. Everyone was running all over the place. Some started to hold down the bubbles as much as they could‚ while others started to pray to God because they thought this was going to be the end. Then‚ out of nowhere Ploof had a secret magical‚ but unusual liquid that made the bubbles go down. We were all so relieved and curious what was that magic liquid
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TO DETERMINE PREVALLENCE OF Meloidogne species ( ROOT-KNOT NEMATODE) ON BEANS IN MUNO LOCATION IN UASIN- GISHU COUNTY PRESENTED BY DOMINIC MAGUTaa TABLE OF CONTENT 1.1 DECLARATION 1.2 DEDICATION 1.3 ACKNOWLEDGEMENT ABSTRACT……………………………………………………………………………… INTRODUCTION…………………………………………………………………….. LITERATURE REVIEW……………………………………………………………… METHODOLOGY……………………………………………………………………….. DISCUSSION OF RESULTS…………………………………………………………. CONCLUSSION ………………………………………………………………………… RECOMMENDATION…………………………………………………………………
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