This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

The project investigates how friction affects motion by using different surface textures.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea determines the most effective method of preserving food.

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

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea examines liquids of different densities.

The project determines which laundry detergent is best for cleaning clothes.

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.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

In this project, the affect of acid rain is simulated by the acid, vinegar.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

This science fair project idea researches the effects of acid rain on plant growth.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.