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Botany Science Fair Project

Watering Plants: Does it Make a Difference?

Watering Plants: Does it Make a Difference? | Science Fair Projects | STEM Projects
Ever wonder if watering plants makes them grow faster? Let's find out! In this experiment, we will water plants with different amounts of water and measure their growth.


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.


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

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

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