This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

This science fair project idea explores the fastest average speed a human can talk.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

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 investigates how temperature of a room affects the burn rate of a candle.

Learn about the factors that influence group conformity.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

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

Find out whether matte or shiny nail polish lasts longer.

This science fair project studies whether DSLR and Point-and-Shoot cameras work the same way under all conditions.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

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

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science fair project idea examines which type of insulation holds in the most heat.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

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

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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.