What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science fair project idea identifies trees using a dichotomous key.

In this science fair project, young children notice and track changes in trees throughout the year.

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

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

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.

A math project teaches students to use a clinometer to gauge the height of very tall objects like trees & to think of better ways to measure how high they are.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

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

This science fair project idea deals with the qualities of shade on a sunny day.

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

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

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

Use a dichotomous key to identify plants or animals.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This science project teaches students to classify different shapes of leaves.

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

This experiment will explore if and where fractals can be found in the natural world.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

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.

In this project, students will learn what and how foods are grown in rain forests and if there are sustainable methods that can be used.