Search for Science Fair Projects

1000 Science Fair Projects with Complete Instructions

Botany Science Fair Project

Nitrogen and Plant Growth

Nitrogen and Plant Growth | Science Fair Projects | STEM Projects
We're going to explore how different levels of nitrogen in water solutions affect the growth of bean plants.


The hypothesis is that the plants receiving a 4% nitrogen solution will be affected the most by growing the tallest.

Method & Materials

You will separate the bean plants into seven groups, label each group with a different level of nitrogen, and water them every other day for two weeks.
You will need 20 clear containers, 2 holding containers, 20 bean seeds, 3 jugs of distilled water, 1 ruler, 1 bag of nitrogen fertilizer, 1 scale, 7 200ml beakers, 1 bag of Pearl Light, 1 permanent marker, and 7 stick on labels.


The results of the experiment showed that the control group grew the best, the .5% and the 1% grew the second best, and the 2%, 4%, 6%, and the 10% died. The control group also weighed the most, and the 1% was the second heaviest.

Why do this project?

This science project is interesting because it helps gardeners and farmers grow healthier gardens and more abundant crops.

Also Consider

Variations to consider include using different plants and testing a nitrogen solution larger than 2%.

Full project details

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

Related video

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!
Share this Science Project:

Related Science Fair Project Ideas

Frozen Flower Sensory Play
Watch ice melt and flowers bloom in this hands-on science activity for kids!
Plant Growth in and Out of Greenhouses
Let's find out if plants grow bigger in a greenhouse or without protection!
Changing the Color of Flowers
Did you know you can change the color of flowers? With this science experiment, you can!
Share this Science Project: