How to Change the Color of a Rose Science Project
Science fair projects offer students the opportunity to study a phenomenon by using scientific steps to explain something that happens naturally. If you are looking for an easy and interesting science project for your child, the color-changing rose experiment is a good choice. This experiment shows how water reaches all parts of a plant. It requires just a few simple materials and takes about a week to complete.
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Things You'll Need
- Standing poster board
- Markers
- 3 glasses
- 30 ounces of. water
- Blue food coloring
- Red food coloring
- Spoon
- 3 white roses
- Scissors
- Camera
- Lab notebook
- Pencil
Instructions
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1
Create a picture diagram on a standing poster board. The diagram should be of the inside of the parts of the rose. Draw a cross section of the inside of the flower, as if you cut the flower in half and are looking on the inside of the flower. Draw a cross section of the stem, leaves and petals. Clearly label parts of the rose.
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Fill three glasses with 8 to 10 ounces of fresh, clean water. Add two to three drops of blue food coloring to one glass and two to three drops of red food coloring to another glass. Leave the last glass of water clear. This will be your control glass.
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3
Trim the end of the stem of each rose and place it in each glass of water. Take a picture of the roses and record a description of each rose. Record the date and time in your lab notebook.
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4
Take a picture of the roses and record your observations each day for the week. Record the date and time with each observation.
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At the end of the week, paste the pictures on the standing poster board and write the date and time underneath each picture. Set the three roses in front of the poster board, along with your lab notebook.
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The conclusion to your experiment should be that the water traveled up the stem tubes and into the leaves and petals of the rose. The colored water turned the rose the same color as the water: blue and red. This is a good way to see the path water travels.
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Tips & Warnings
Use a Polaroid or digital camera to get instant pictures of your experiment.
