Science Projects on Flowers

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Teachers assign science projects to their students to give them the opportunity to show what they have learned. Often, students choose to design projects that have to do with flowers and how they grow. Flower science projects may involve watching how water travels up a stem or how additives and light affect growth. (See Reference 5)

Does Sugar Prolong the Life of Flowers?

  • This project will take about two weeks and will compare the effect of sugar and salt on the growth of flowers. Students need carnations, water, three vases or clear jars, sugar, salt and measuring cups. Begin by trimming the ends of each flower with scissors and filling three of the vases with 100 ml of water. Label the three vases "salt," "sugar" and "nothing." Add 2.25 grams of salt to the salt vase and 2.25 grams of sugar to the sugar vase. Put four carnations in the salt vase, four in the sugar vase and four in the control vase. Observe the flowers over time and record which flowers last the longest. (See Reference 1)

Colored Flowers

  • This project will show kids how water travels up the stem of a flower. Students will need several carnations and clear vases, water, and a variety of food colorings. Arrange clear vases of water and place one or two carnations in each vase. Add a different food color to each vase. Observe the carnations and see how the food coloring travels up the stem and colors the flower petals. (See Reference 2)

Light Color and Plant Growth

  • The objective of this project is to see whether different light colors affect plant growth. Students need five small planter boxes, potting soil, lima bean seeds and five transparency sheets of different colors. Fill each box about halfway with potting soil and plant lima bean seeds in the soil. Cover each box with a different colored transparency sheet and find a sunny spot for the boxes to sit. As the plants grow, monitor the growth of the plants to determine if the different colors of light change the rate of growth. (See Reference 3)

The Effect of Additives

  • Students will need six empty 2-liter bottles, water, measuring cups and spoons, bleach, sugar, vinegar, lemon-lime soda, mouthwash and a commercial flower additive. Gather 12 flowers. Fill fill each bottle two-thirds full of water and add two flowers to each bottle after trimming the end of each flower. Using measuring spoons, add two teaspoons of one of the additives to each bottle. Over the next two weeks, observe growth and any changes to the flowers. Add water to each bottle as necessary and take pictures during the experiment. (See Reference 4)

References

  • Photo Credit the carnation image by Kir from Fotolia.com
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