What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Have your child kick off their summer vacation by making a miniature water slide!

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

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

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This science fair project teaches students about wilting and browning of salad greens.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Make a backbone model to explore human anatomy and life science.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.