Color Changing Carnations

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Color Changing Carnations

• Liz Bold
• Ariel Gaworecki
• Jessica Holt

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Introduction to Experiment

• Our experiment was called the color changing
  carnations in which we wanted to test where
  water goes in a plant when it is watered. The two
  processes present in this experiment were
• 1) Transpiration
• 2) Cohesion.

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Definitions of the two main processes

• Transpiration- occurs when water is being sucked
  up the stem of the flower and replaces the
  evaporated water from the leaves and petals.
• Cohesion- occurs when water sticks to itself
  and has a hard time moving up the plant stem
  because it is very narrow. (http//www.stevespangl
  erscience.com/experiment/)

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Transpiration Diagram
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Cohesion/ Transpiration Process
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Our Hypothesis

• Question Where does the water go in a plant when
  it is absorbed?
• Hypothesis Each plant will absorb the different
  color dye that is mixed with its water

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Procedure of Experiment

• 1) The first thing that we did in this
  experiment was cut diagonally the stems of each
  of the 4 carnations.
• 2) Next we filled the beakers up with 600ml of
  water.
• A) Then we added 30 drops of green food
  coloring to the first beaker.
• B)Then we added 30 drops of blue food coloring
  to the second beaker.
• C) Next we added 30 drops of yellow food
  coloring to the third beaker.
• D) And then lastly we added 30 drops of red food
  coloring to the fourth beaker.
• 3) We then placed one carnation into each of the
  colored beakers.
• (We waited 24 hours to wait for the results).

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1st Step of Experiment
The first thing that we did in this experiment
was cut diagonally the stems of each of the 4
carnations.
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2nd Step of Experiment
Next we filled the beakers up with 600ml of
water.
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3rd Step of Experiment
Then we added 30 drops of green food coloring and
a single carnation into the beaker.
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4th Step of Experiment
Then we added 30 drops of blue food coloring to
the second beaker and added a single carnation.
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5th Step of Experiment
Next we added 30 drops of yellow food coloring to
the third beaker and added a single carnation.
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6th Step of Experiment
And then lastly we added 30 drops of red food
coloring to the fourth beaker and added a single
carnation.
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Results of Experiment

• After waiting 24 hours, we observed the
  carnations and the results.
• We found
• The red food coloring was most absorbed and most
  visible in the petals of the carnation.
• The green food coloring was the second most
  absorbed and visible.
• The blue and the yellow food coloring were
  equally less visible than the green and yellow.

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Discussion/Conclusion

• The results showed
• 1) The water traveled to the petals because no
  color showed in the stems or leaves. Our
  hypothesis was supported because the plants did
  in fact change to the color of the dye in the
  water.
• Our main question
• Q) Why were some dyes absorbed better than
  others?
• A) This may be due to the width or the length
  of the stems were different and could have
  deterred some of the colors from absorbing into
  the petals. We should have measured the length of
  each of the stems to help narrow the results as
  to why some dyes were more visible than others.
  The only thing we would change would be to have
  more flowers to experiment with lengths and
  widths of the stems and the difference it would
  make in the results.

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References

• References
• Color Changing Carnations (Steve Spangler, 2008)
  (http//www.stevespanglerscience.com/experiment/)
• Google Images