The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

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

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

This science fair project determines whether the types of plants growing in a Pacific Northwest rain forest environment are influenced by the soil acidity.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Plants and light seem to be good buddies, but how far does the friendship really go?

Do you think heat can affect a plant's growth rate?

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.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

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

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

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 project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

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

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

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.

This cool middle school science fair project idea helps students explore the role phototropism plays in the growth of green plants.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

The objective of this science project is to determine the length of time for different seeds to germinate.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.