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Do Cut Flowers Live Longer in Water, Salt Water, or Sugar Wa
Transcript of Do Cut Flowers Live Longer in Water, Salt Water, or Sugar Wa
By: Emily Long
After 3 weeks, the salt water lasted 11 days, the fresh water lasted 17 days, and the sugar water lasted 23 days.
Overall, my hypothesis was right. The sugar water eventually allowed the flowers to survive longer than the fresh and salt water. Based on my research, the sugar water gave the flower a longer time to live, because it had an efficient way to get its "food"/ energy.
2 tablespoons of salt
2 tablespoons of sugar
3 cups of water
9 flowers (3 for each vase/jar)
room temperature area (not too much sunlight)
pencil and paper/ computer
Collect your vases, salt, sugar, and water
Heat 1 cup of water and mix in the 2 tablespoons of sugar until the solvent is dissolved into the solute and pour (carefully) into the vase/jar
Heat another cup of water, mix the salt in thoroughly, and pour mixture into the vase (with caution)
Pour in 1 cup of water into the third vase
Label vases with the type of mixture
Let vases sit out over night to let mixtures cool
Gather flowers (12) and place 4 into each vase/jar
(before placing into the vases/jars, cut ends underwater to freshen the cells and to shorten, renew the water vessels, and to keep air from entering the stem)
Record rate of wilting from every other day for an average 3-week period and chart/graph
I believe that sugar water will prolong the life of cut flowers because they need glucose (sugar) to survive initially and since they are deprived of their leaves that help with photosynthesis, the sugar water will serve as a means of transportation of food to the cut plant.
During photosynthesis (when a plant makes its own food), the plant uses the sun's solar energy and turns it into chemical energy to utilize carbon dioxide and water and turn it into sugar (glucose) and oxygen.
Water helps transport nutrients (by osmosis) to the plant and is a factor for photosynthesis.
Salt raises the freezing point and decreases the evaporation and boiling point of water.
Naturally, a plant needs air, water, soil, and space to grow.
When wilting, a cut flower can only stay fresh for a short, limited time because they're deprived of their roots and and are limited of the nutrients that they need
Glucose is a simple sugar carbohydrate used for energy in cellular respiration
Dependent- the rate at which the flowers wilt
Independent- the type of water used
Controls- the species of flower
Quantitative- the amount of time it takes for the flowers to wilt, how many flowers and vases used, and amount of salt, sugar, and water
Qualitative- the color change between flowers and color of water
What I Would Do Next
Type of Water
Days It Took for the Flowers to Wilt
If I were to repeat this experiment,
I would try to use a variety of flowers, with multiple trials, and have more variables concerning the type of liquid used to sustain the flowers.