Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This basketball project explores the best way to make the perfect shot every time.

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.

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

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

This simple experiment serves as an introduction to the greenhouse effect.

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.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

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

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

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project idea explores the different properties of matter.

Make sourdough bread...and learn some colonial history and modern science in the process!

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

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

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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