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

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

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

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

In this math and science activity, help your middleschooler learn about proportion and measurement with just her shadow and a tape measure!

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

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

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

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

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

This experiment explores whether caffeine improves athletic performance.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

Teach your child how butter is created by shaking up cream the old-fashioned way.