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.

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.

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

This science fair project will help students learn about non-vascular plants, such as mosses.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Find out whether packaged seeds actually do expire in this new science fair project idea.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This science fair project examines how seeds hitchhike on animals and clothing.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science fair project idea compares biodiversity between drops of water.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

In this project, the affects of vitamin E are observed on a rose petal.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

This science fair project teaches students about wilting and browning of salad greens.