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.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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

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 season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

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!

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

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

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

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

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.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

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

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

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.

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.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

This science fair project idea provides evidence that air is everywhere and takes up space.

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Create a bee garden to help shelter bees in your area.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.