Escience lab 2 answers
[DOC File]Cell Respiration Yeast Lab - BIOLOGY JUNCTION
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In this lab, we will observe the effect of food source on the process of cellular respiration by yeast. You will attempt to determine whether a yeast “bread dough” contains only flour or flour and sugar, based on the rate of CO2 production. You will assess CO2 production by measuring how much the dough rises in a set period of time.
[DOC File]Diffusion Lab - BrainMass
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Measure the diameter of the dye (the distance it has traveled) every 10 seconds for a total of 2 minutes. Record your measurements in the following tables (Tables 1, 2, and 3) and graph your results (distance traveled on the y axis, time on the x axis). Repeat this process using the red dye in …
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In this part of the lab, you will use a microscope to observe Brownian motion in carmine red powder, which is a dye obtained from the pulverized guts of female cochineal beetles. Materials. Glass slideToothpickCarmine red powderCoverslipTap water. Procedure. 1. Obtain a microscope slide and place a drop of tap water on it. 2. Using a toothpick ...
[DOC File]LABORATORY EXERCISE #2
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2. Focusing the microscope. Place the slide on the carrier on the stage between the prong and the spring clip so that it nestles against the edge of the carrier. DO NOT put the slide under the metal carrier. Adjust the carrier so that the slide is centered over the hold. Remember the low-power objective is in place.
[DOC File]Electrical Circuits Lab - Allison Avery's Science Class
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Electric Current and Circuits Lab. Objective: Understand the basic parts of a circuit and how an electric current moves through it. Materials: battery. battery clip. light bulb. wire. Procedure: Read the paragraphs covering “Electric Current”. Answer the questions 1-6. on your answer sheet.
[DOC File]Science Lab Report Example Using the Seed Germination ...
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2. Dependent (responding) variable: seed germination rate (%) C. Procedure: 1. Gather all of the materials needed to perform the experiment. 2. Make the acid solution by diluting household vinegar with water until a pH of 5 is obtained. 3. Label each Zip Loc bag with the treatment type, name of person in lab group, and period number. 4.
[DOC File]Physical and Chemical Properties Lab
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2. Record your observations of the powder into Table 1 in the ‘Unmixed’ column. 3. Use the popsicle stick to put some of the baking soda on the plate. Use a . pipette to add water to the baking soda on the plate, mix with . popsicle stick. Record your observations in Table 1 in the column labeled ‘Mixed with Water’ 4.
[DOC File]Identification of an Unknown Metal
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The specific heat capacity of water is 4.184 J/g((C. In this lab you will be measuring the specific heat of an unknown metal by measuring the amount of heat it transfers to a known amount of water. To do this you will use a calorimeter – in this lab, that’s a Styrofoam cup. Safety Precautions: Goggles must be worn.
[DOC File]Part 1: What is it
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Use the measuring spoon to add 2 2/3 T. (approximately 40 mL) amount of liquid dishwashing detergent, 2 2/3 T. powdered dishsoap, and 2 2/3 T. powdered laundry into their respective beakers. Set the beakers aside. Note: Three total measurements in Step 4. One measurement should be allocated into one of the three, labeled beakers.
[DOC File]Five Types of Chemical Reaction Worksheet Answers
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Five Types of Chemical Reaction Worksheet Answers. Balance the following reactions and indicate which of the six types of chemical reaction are being represented: a) 2. NaBr + 1. Ca(OH)2 ( 1. CaBr2 + 2. NaOH Type of reaction: double displacement. b) 2. NH3+ 1. H2SO4 ( 1 (NH4)2SO4 Type of reaction: synthesis. c) 4. C5H9O + 27.
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