SAMPLE SCIENCE FAIR PROJECT
Colored Water and Flowers
Question: What happens to a flower if it is put in colored water?
Research: According to (list sources here) a plant stem has tubes which carry water and food to the plant, etc.
Hypothesis: If a flower is put in colored water, then the color of the water will show when it's drawn into the petals of the flower. A flower in clear water will
have no change in color.
Materials: Three flowers, white (such as a carnation) to show color with 8 inch stems.
One 8 oz glass of clear water; Control Group
One 8 oz glass of clear water with 2 teaspoons red food coloring; Group A
One 8 oz glass of clear water with 2 teaspoons blue food coloring; Group B
Procedure:
1. Make a fresh cut in the stem each white flower
2. Place one flower in each glass of water and set aside.
3. Observe flower over a period of time, (Record dates of observations) recording the changes in the appearance of each flower.
(Multiple observations would be best.)
Results: The flower in Group A has picked up the color _____ on the tips of the petals.
The flower in Group B has picked up the color ______ on the tips of its petals.
The flower in the Control Group is unchanged.
Conclusion: Flowers will draw water through the stem into the petals and the color will show up in the petals.
The flower in the control group will be unchanged.
To display, students will need pictures, or drawings of the changes, and perhaps the flower itself as part of the display.
A project as simple as this one is acceptable, and will be graded on the quality of the write up, showing the parts of the scientific method, as is done here.
For the presentation, students will be graded on showing knowledge of the results of the experiement, and referring to the hypothesis in presenting the outcome.
Question: What happens to a flower if it is put in colored water?
Research: According to (list sources here) a plant stem has tubes which carry water and food to the plant, etc.
Hypothesis: If a flower is put in colored water, then the color of the water will show when it's drawn into the petals of the flower. A flower in clear water will
have no change in color.
Materials: Three flowers, white (such as a carnation) to show color with 8 inch stems.
One 8 oz glass of clear water; Control Group
One 8 oz glass of clear water with 2 teaspoons red food coloring; Group A
One 8 oz glass of clear water with 2 teaspoons blue food coloring; Group B
Procedure:
1. Make a fresh cut in the stem each white flower
2. Place one flower in each glass of water and set aside.
3. Observe flower over a period of time, (Record dates of observations) recording the changes in the appearance of each flower.
(Multiple observations would be best.)
Results: The flower in Group A has picked up the color _____ on the tips of the petals.
The flower in Group B has picked up the color ______ on the tips of its petals.
The flower in the Control Group is unchanged.
Conclusion: Flowers will draw water through the stem into the petals and the color will show up in the petals.
The flower in the control group will be unchanged.
To display, students will need pictures, or drawings of the changes, and perhaps the flower itself as part of the display.
A project as simple as this one is acceptable, and will be graded on the quality of the write up, showing the parts of the scientific method, as is done here.
For the presentation, students will be graded on showing knowledge of the results of the experiement, and referring to the hypothesis in presenting the outcome.