Use a dichotomous key to identify plants or animals.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

This science fair project idea experiments with spinning color wheels and optical illusions.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

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.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

This science experiment tests if dog saliva can really help heal wounds.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

This fascinating science fair project explores eye color genotypes.

The objective of this science project is to investigate patterns in fingerprints among family members.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

This project concerns activity happening millions of miles away, on the sun.