What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

This science fair project idea researches the effects of acid rain on plant growth.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

Examine the impact of insecticides on plant growth.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

This science fair project idea explores whether talking to a plant will help it grow.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Free science fair project idea examining how different types of water affect plant germination and growth.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This science fair project idea investigates whether plants can survive being frozen.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

This science fair project idea determines if the color of light affects the growth of plants.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

Find out whether putting something on top of a plant will inhibit its growth.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.