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

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

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 cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Learn about nature by making your own mini moss garden.

Make edible amber fossils with your second grader to explore the fascinating world of science!

Help your child learn about animal classification with this fun and delicious activity.

Learn about Ikebana, or the Japanese art of flower arranging, with your child while artfully arranging spring flowers!

Learn all about balance and motion as your child designs a corn maze!

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

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.