Is it possible to create or change the color of a white flower?
This is a great experiment when you teach students about plants. The best part is that you can use this for any grade level from K-12 when studying plants. The level of differentiation can be molded by explaining more about roots, xylem, phloem, transpiration and water absorption in plants.
Here is what you need:
- White flowers (daisies or carnations)
- Food coloring
- Large plastic cups (clear is better)
- Knife or scissors.
- Access to water.
- Fill the plastic cups about half full with water.
- Add a lot of food coloring and mix.
- Cut the bottom of the flower on a 45 degree angle.
- Observe the flowers every 2 hours.
How does it work?
The food coloring is brought up the petals of the flower. The plant must utilize that water for photosynthesis so the petals take on the color of the food coloring in the water.