Lab #11 – The Celery Experiment
Problem
How does a plant get water from its
roots to its leaves?
Hypothesis
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Materials
Celery
Celery seeds
Food coloring
Water
Plastic cup
Scissors
Ruler
Hand lens
Procedure
1.
Make observations of your celery
seeds in the Results.
2.
Make observations of your celery
stalk in the Results.
3.
Cut about 2.5 cm off the bottom of
the celery stalk and make observations on the celery stalk’s cross section.
4.
Fill up a plastic cup with 250 ml of
water and add two drops of food coloring.
Put your celery stalk, cross section down and leaves up, into the cup of
colored water.
5.
Make observations on your celery
stalk experiment. Make sure to include
color and other details such as height, number of leaves, width of cross
section, etc.
Results
A.
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Observations on the celery seed
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Observations on the celery seed 10X
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Observations on the celery stalk
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Observations on the celery stalk 10X
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Observations on the celery stalk’s cross section
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Observations on the celery stalk’s cross section 10X
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Observations on the celery stalk in colored water
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Observations on the celery stalk in colored water 10X
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B.
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Observations on the celery stalk
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10X
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Observations on the celery stalk’s cross section
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10X
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Analysis
1)
What happened to your celery stalk
overnight?
2)
How do you know that the water reached the top of the plant (celery stalk)?
3)
Look for small circles at the bottom of the stalk that are the color of the
food coloring you used. (These circles are xylem, the tubes that carry water up
the plant.) Draw pictures and make observations about the xylem in your celery.
4) What evidence do you have that celery is an organism? Give 5 different points of evidence.
Conclusion
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