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.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

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

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

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?

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

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.

When the wind starts blowing, you and your child can plant a sponge garden in the comfort of your own kitchen. Here's how:

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.

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

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

Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.