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

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

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.

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.

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

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.

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

Find out whether putting something on top of a plant will inhibit its 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 plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

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

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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Explore if planting seeds in a certain direction will affect how fast it germinates.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Test whether plants can grow without sunlight and water.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.