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The plant hormones or phytohormones are involved in all the stages of plant life from pollinisation - inducing the fecondation and the zygotic embryo development, all the way through its development into an adult plant - to flowering, development of the fruit and senecence control. The same phytohormones not only control the growth and development processes: for that, they are crucially
Difficulty: High school
Does one bad apple spoil the whole bunch? How might one ripening fruit signal others to begin to ripen? What might cause synchrony? Plants use hormones to communicate among tissues. In this experiment, students are introduced to a technique used to evaluate the ripeness of fruit. They design experiments to test hypotheses about the role of hormones in synchronizing fruit ripening in apples.
Difficulty: Elementary school
The objective of this science fair project is to determine the effectiveness of using sugar to preserve and keep the flowers fresh for longer periods of time. The experiment will be carried out using flowers such as the rose, carnations and lilies, and water containing different amounts of sugar
Difficulty: Elementary school
I wanted to know the growth difference in plants when different plant foods were being fed to them. I believed that if I used Miracle-Gro the plants would grow taller than the others, I believed this because Miracle-Gro seems to be the most popular nationally known plant food in the United States of America. I hoped that this investigation would tell me what plant food makes plants grow
CategoryBiology > Botany
Difficulty: Elementary school
If you've ever planted seeds in the ground, perhaps you have wondered just how do they know which way to grow. How do the roots know to grow down and how do the stems and leaves know to grow up?
CategoryBiology > Botany
Difficulty: Elementary school
The purpose of this experiment is to determine whether magnets have an effect on the growth of radish seedlings. I became interested in the study of the effect magnets, when I discovered that magnets could make you heal faster. Later I decided that that it would be a better idea to study the effect of magnets on plants to keep it a safe experiment.
CategoryBiology > Botany
Difficulty: Middle school
My hypothesis is that the plant with the soil temperature normal will sprout faster then the plant with the soil temperature higher and lower.
CategoryBiology > Botany
Difficulty: Elementary school
The following experiments with plants can be used progressively through the plant units in the K-6 science curriculum. They are all based upon growing seeds in a sterilized baby food or Snapple ® jar filled with 3/4 inch of unflavored gelatin to which a few drops of liquid house plant fertilizer has been added for nutrients.
CategoryBiology > Botany
Difficulty: Elementary school
The purpose of this experiment is to find out which depth is best for growing bean plants in potting soil. The procedure of this experiment was first to plant the seed in four different depths.
CategoryBiology > Botany
Difficulty: Elementary school
Of all the organisms in the natural world, green plants are the only ones that manufacture their own food. This process is called photosynthesis and begins when light strikes the plant's leaves (both sunlight and artificial light can power this process). Cells in the plant's leaves, called chloroplasts, contain a green pigment called chlorophyll which interacts with sunlight to split the water
CategoryBiology > Botany
Difficulty: Elementary school
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