Name:_______________________ Date:___________ Period:______ Page:_______ Potato Diffusion Lab Hypothesis:________________________________________________________________________ __________________________________________________________________________________ Materials Aprons/Goggles Potato Slice (2-3cm thick) Potato Borer Triple beam balance 6 x 100mL beakers plastic wrap Paper towel 50mL Distilled Water 50mL 0.2M Sucrose solution 50mL 0.4M Sucrose solution 50mL 0.6M Sucrose
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5 B to C 4 4 8.5 13 B to D 2 2.5 5 7.5 C to D 3 3.5 5.5 10.5 Analysis: Answer the following questions in complete sentences. Include the answers in theAnalysis and Conclusion section of your lab report. 1. How does the density and distribution of your “stars” change as the balloon expands? When the balloon is not inflated‚ the “stars” are closer together. Thus‚ they are denser. When the balloon is blown up‚ the universe is bigger‚ making the stars less dense. 2. Compare and contrast your
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xxx1 xxxxxx Ms. xxxx Biology 20 November 2013 Osmosis Lab Problem: What’s the order of the concentration for each solution and how does it affect the movement of water? Hypothesis: Experimenter thinks the order of the solutions according to their concentration is D‚A‚E‚C‚B‚ from smallest. And the water will pass through semipermeable tubing bag from low to high concentration to thin the concentration inside the bag. Osmosis is a diffusion of water particles and is one of the passive transport
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attached at the higher end of the ramp. 2. Carbon paper was attached to the ticker machine and ticker tape was fed through to the ticker machine. 3. The ticker tape was taped to the back of the car. 4. The ticker machine was turned on (turnt) and the car was released and stopped as it exited the ramp. 5. The ticker tape which was dotted was collected and the distance between dots was recorded. 6. The process was done 3 times for each angle. 7. Steps 2-6 were repeated for 6.3 degrees‚ 90 degrees
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is the capacitative reactance‚ R is the resistance‚ and ω = 2π f ( f is the linear frequency). Apparatus • PC with DataStudio installed • Science Workshop 750 USB Interface Box • Power Amplifier • Voltage Sensor • AC/DC Electronics Lab Board • LCR meter • Connecting patch cords Experimental Procedure The experimental procedure can be divided into three parts: Part I: Using a Frequency Scan to Determine the Resonance Frequency • The first
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Lab #4: The Immune System Purpose: The purpose of this lab was to perform and understand the procedures of conducting an ELISA test to determine whether a particular antibody is present in a patient’s blood sample through a virtual simulation. Hypothesis: If I successfully complete this lab‚ I will then understand how to perform an ELISA test‚ the purpose an ELISA test‚ and also how to interpret the results of this test. Materials and Procedures: Materials: Howard Huges medical
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(HRPD-701) Instructor: Wenlu Feng Lecture 2: Job Analysis and Job Design (Reference reading: Chapter 2 of the text) Job analysis—The procedure for determining the tasks and responsibilities of each a job‚ and the human attributes (in terms of knowledge‚ skills‚ and abilities) required to perform the job. The outcomes of job analysis will be: Job description (what the job entails)‚ Job specifications (what the human requirements are needed for the job). Job analysis is something called the cornerstone
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Question/Purpose: The Question or Purpose of our lab is to answer the question “How is the germination of a seed affected by sunlight?” Experimental Hypothesis: We believe these results will occur. 1. The seeds that are water deprived (1 mL of H2O a day) will not grow very well due to a lack of water which is important in photosynthesis and also lacks nutrients. The seeds may also die off due to a lack of water. 2. The seeds that are have a proper amount of water (10 mL of
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The refraction of light lab used common materials to examine the process of the refraction of light. The title of this lab is exactly what occurs throughout the four different experiments. All four parts of this lab use prior knowledge to observe the complex concept of refraction. Refraction is the bending of a light when it enters a medium where the speed of light is different. When light enters through the glass and water the speed of light becomes decreased. This is due to the density of water
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cylinder ruler salt solution test tube rack PROCEDURE: 1. Cut 18 potato cores from the same potato using a knife and place them onto the lab bench. Using a scalpel and ruler (calibrated in millimeters) cut the cores into 50 mm lengths‚ with care taken to ensure no potato peel being left on them. The cutting will be to an accuracy of 1 millimeter 2. Mass each potato core using the mass balance. The mass will be to an accuracy of 0.01 grams. 3. Place the potato cores in a Ziploc bag. Label
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