This science fair project idea investigates if webbed feet help a duck (and others) swim.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

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

This science fair project idea explores the egg's thin membrane.

This project determines what category of person is most likely to be ticklish.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

This science fair project idea determines which method of hand cleansing is the most effective.

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

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

This science fair project idea investigates the difference in reaction times between boys and girls.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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