Direction: Read and analyze the following laboratory experiment and answer the following question. PART 2: CARROT POTATO LAB Materials: 6 potato chunks, 6 carrots, 6 sucrose solutions (0m, 0.2m, 0.4m, 0.6m, 0.8m & 1.0 m), plastic cups, and paper towels Methodology: 1. Safety: Wear goggles while completing this lab. 2. Slice a carrot and potato into discs that are approximately 5 cm thick. 3. Use a cork borer to cut the carrots and potatoes. Do not include any skin on the cylinders. You need four apple and potato cylinders for each solution. 4. Keep a carrot and potato cylinders in a covered container until it is your turn to use the balance. 5. Determine the mass of the four cylinders together and record the mass. Put the four cylinders into the plastic cup container. 6. Label the containers with the color of the solution and your initials. 7. Pour the colored solution into the containers and cover with plastic lid. 8. Let stand overnight. 9. Remove the cores from the beakers, blot them gently on a paper towel, and determine their total mass. 10. Record these final masses. 11. Discard solution in the sink and used carrot and potato /cups in the trash. Questions: 1. What is the independent variable in the experiment? Why? 2. What is the dependent variable in the experiment? Why? 3. What possible variables should you be sure to hold Constant? Give three and explain why. 4. What is your control variable? Why is this a valid control?
Direction: Read and analyze the following laboratory experiment and answer the following question. PART 2: CARROT POTATO LAB Materials: 6 potato chunks, 6 carrots, 6 sucrose solutions (0m, 0.2m, 0.4m, 0.6m, 0.8m & 1.0 m), plastic cups, and paper towels Methodology: 1. Safety: Wear goggles while completing this lab. 2. Slice a carrot and potato into discs that are approximately 5 cm thick. 3. Use a cork borer to cut the carrots and potatoes. Do not include any skin on the cylinders. You need four apple and potato cylinders for each solution. 4. Keep a carrot and potato cylinders in a covered container until it is your turn to use the balance. 5. Determine the mass of the four cylinders together and record the mass. Put the four cylinders into the plastic cup container. 6. Label the containers with the color of the solution and your initials. 7. Pour the colored solution into the containers and cover with plastic lid. 8. Let stand overnight. 9. Remove the cores from the beakers, blot them gently on a paper towel, and determine their total mass. 10. Record these final masses. 11. Discard solution in the sink and used carrot and potato /cups in the trash. Questions: 1. What is the independent variable in the experiment? Why? 2. What is the dependent variable in the experiment? Why? 3. What possible variables should you be sure to hold Constant? Give three and explain why. 4. What is your control variable? Why is this a valid control?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Direction: Read and analyze the following laboratory experiment and answer the
following question.
PART 2: CARROT POTATO LAB
Materials: 6 potato chunks, 6 carrots, 6 sucrose solutions (0m, 0.2m, 0.4m, 0.6m,
0.8m & 1.0 m), plastic cups, and paper towels
Methodology:
1. Safety: Wear goggles while completing this lab.
2. Slice a carrot and potato into discs that are approximately 5 cm thick.
3. Use a cork borer to cut the carrots and potatoes. Do not include any skin on
the cylinders. You need four apple and potato cylinders for each solution.
4. Keep a carrot and potato cylinders in a covered container until it is your
turn to use the balance.
5. Determine the mass of the four cylinders together and record the mass. Put
the four cylinders into the plastic cup container.
6. Label the containers with the color of the solution and your initials.
7. Pour the colored solution into the containers and cover with plastic lid.
8. Let stand overnight.
9. Remove the cores from the beakers, blot them gently on a paper towel, and
determine their total mass.
10. Record these final masses.
11. Discard solution in the sink and used carrot and potato /cups in the trash.
Questions:
1. What is the independent variable in the experiment? Why?
2. What is the dependent variable in the experiment? Why?
3. What possible variables should you be sure to hold Constant? Give three and explain
why.
4. What is your control variable? Why is this a valid control?
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