This project compares the strength of one, two, and three-ply toilet paper.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

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

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

In this project students experiment with making music using only glasses of water.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

In this experiment we will be determining whether birds prefer certain colors of seed.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Is it a square or a circle? See if you can trick your friends with this zany science project!

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

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

This science fair project idea explores how length affects the weight a bridge can hold.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

In this activity your child will create their very own marble maze!

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

This project investigates the affect of storage temperature on microwave popcorn.

This science fair project idea explores whether talking to a plant will help it grow.