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School

Florida Virtual School *

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8111033

Subject

Chemistry

Date

Jun 1, 2024

Type

docx

Pages

3

Uploaded by EarlSardine4440

Cell Transport Lab Report Instructions: There are two options for completing the lab. You can either complete the lab at home over the course of three days or watch the teacher-led video and record your observations. Links to the hands-on lab and video observation lab are on the assessment page. Title: Cell Transportation Lab Report Objective(s): to measure and analyze cell transportation and do so by leaving an egg in vinegar. Hypothesis: I believe the egg will be enlarged when left in vinegar and water because the egg will absorb the water causing it to enlarge due to the process of osmosis. Variables: Independent Variable: water and vinegar Dependent Variable: the egg Controlled Variable: the cup or jar Materials: Raw egg String or thread or yarn Ruler White vinegar Tap water Jar with lid (like a mayonnaise jar or something big enough to put the egg in) Procedure: 1. Before beginning the experiment, record at least two observations of the raw egg in your lab report. 2. Wrap the string around the center of the egg to determine its initial circumference. Measure the string and record the initial circumference in centimeters (cm). 3. Gently wrap the egg in the jar and completely cover the egg with vinegar. Use the lid to seal the jar and note the time. This will be considered the “start time” of the experiment. 4. After approximately 24 hours from the start time, carefully remove the egg from the jar of vinegar. If the shell has completely dissolved, exposing the inner membrane, move on to the next step. If not, return the egg to the vinegar until the shell has completely dissolved. 5. Record at least two observations of the egg. 6. Measure and record the circumference of the egg, being sure to measure it in the same way every time you measure circumference. Unless Otherwise Noted All Content © 2023 Florida Virtual School. FlexPoint Education Cloud™ is a trademark of Florida Virtual School.
7. Pour out the vinegar and rinse the jar. Then fill the jar about half full of tap water. 8. Gently place the egg back into the jar, making sure it is completely covered with water. Use the lid to seal the jar. 9. After a total of 48 hours from the start time, carefully remove the egg from the jar of water. 10. Make two observations of the raw egg, and measure and record the circumference. 11. Gently place the egg back into the jar, making sure it is completely covered with water. Use the lid to seal the jar. 12. After a total of 72 hours from the start time, carefully remove the egg from the jar of water. 13. Make two observations of the raw egg, and measure and record the circumference. Data and Observations: Record your observations from the experiment either the hands-on lab or the teacher led video. Don’t forget to include at least two detailed observations and the measurement of the egg’s circumference in centimeters. Time (hours) Observations Circumference (cm) 0 1. Hard shell 2. smooth surface 16 cm 24 1. lighter color 2. flakey shell 17.5 48 1. squishy 2. small bit of transparent 18 72 1. whiter tint 2. more transparent 18.5 Conclusion: Unless Otherwise Noted All Content © 2023 Florida Virtual School. FlexPoint Education Cloud™ is a trademark of Florida Virtual School.
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