The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science project idea examines the effect of microwaving on various objects.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

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

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea produces sounds by creating vibrations using different objects.

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.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

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

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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 if crystals will absorb food dye and if colors will mix by the process of diffusion.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.