This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

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.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This science fair project idea examines liquids of different densities.

This science fair project teaches students the differences between fruits and vegetables.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This science fair project idea investigates how color affects temperature.

This science fair project idea explores the egg's thin membrane.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project idea examines the reason boats are shaped and engineered.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This science fair project idea produces varying pitches of sound.

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

This science fair project idea explores the different properties of matter.

This science fair project idea identifies trees using a dichotomous key.

This science fair project idea compares biodiversity between drops of water.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project will help students learn about non-vascular plants, such as mosses.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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 science fair project, students create their own miniature salt flats at home.

This science fair project idea investigates how magnetism can defy the force of gravity.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

This science fair project idea experiments with spinning color wheels and optical illusions.

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

This science fair project idea identifies clouds as a means of predicting the weather.

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