This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This classic children's game demonstrates how sound travels through air vs. through a solid.

The goal of this project is to create an exciting topographical map out of dough.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

How powerful is the reaction between baking soda and vinegar? Find out here!

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

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.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Plants and light seem to be good buddies, but how far does the friendship really go?

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.