Radish Growth and Daily Water Volume
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What happens when you give radish plants different amounts of water each day? You plant radish seeds in ten pots. Each pot gets a different daily dose, from 10 ml up to 100 ml, split between morning and evening.
After ten days, you measure the height of every plant. The results show that 30 ml to 50 ml per day produces the tallest radishes. More than 60 ml per day actually slows growth.
Hypothesis
The hypothesis is that plants require sufficient water for a healthy growth rate, but over-watering plants will result in slower growth.
Method & Materials
You will fill 10 pots with the same amount of soil, place 3 radish seeds in each pot, label the pots with the amount of water to be given to the plants every day, and measure the height of the plants on the 10th day.
You will need radish seeds, small plastic pots, soil, tap water, a measuring cylinder, a ruler, and a marker.
Results
The experiment showed that the optimum amount of water required for optimum radish plant growth was between 30 ml to 50 ml. When the radish plants were watered with more than 60ml of water, slower plant growth was observed.
Why do this project?
This science project is interesting because it shows how much water plants need to grow healthy and strong.
Also Consider
Variations of this experiment could include using different types of plants such as mung beans or chinese bamboo, or placing the plants in different environments such as under the sun, in a shaded area or indoors.
Full project details
Additional information and source material for this project are available below.Related videos
These videos explain the science behind this project and demonstrate key concepts used in the experiment.
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