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Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

This science fair project challenges students to research vortices occurring in nature and then create their own vortex.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

In this fun activity, frozen cubes of paint provide your preschooler with a cool new way to paint a masterpiece.

In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.

This basketball project explores the best way to make the perfect shot every time.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?

Make a backbone model to explore human anatomy and life science.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?