These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

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

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

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

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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

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

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea explores substances that cause a bubble to last longer.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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

This science fair project idea observes products available in the school cafeteria and waste produced by these products.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Check out this cool science fair project on identifying rocks and minerals for kids.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

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

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

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