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Botany Science Fair Project

Watering Amount and Mung Bean Growth

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Watering Amount and Mung Bean Growth | Science Fair Projects | STEM Projects
How much water does a plant need each day to grow tallest? You plant mung beans in ten pots and water each with a different amount. The amounts range from 20 ml to 100 ml. Half the pots get water once a day. The other half get the same amount split into two waterings. After ten days, you measure the height of every plant. Plants watered with 40 ml twice a day grow tallest. Too little or too much water slows growth down.

Hypothesis

The hypothesis is that the greater the amount of water, the faster the growth.

Method & Materials

You will fill 10 pots with soil, place 10 mung beans in each pot, and label the pots with the amount of water to be used. You will water the plants once or twice a day for 10 days and measure the height of the plants on the 10th day.
You will need 1 packet of radish seeds, 10 small plastic pots, soil, tap water, a measuring cylinder, a ruler, and a marker.

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Results

After 10 days, the results showed that plants watered with 40 ml of water twice a day were the tallest, followed by plants watered with 80 ml of water once a day.

Why do this project?

This science project is interesting because it shows how different amounts of water can affect the growth of plants.

Also Consider

Variations of this experiment could include using different species of plants, such as corn and green peas, or placing the pots under a shade or directly outside under the sun.

Full project details

Additional information and source material for this project are available below.

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