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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

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.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

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

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.

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea examines liquids of different densities.

This science project teaches students to classify different shapes of leaves.

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

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

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

The objective of this science fair project is to analyze the effects of salinity and temperature on 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 produces varying pitches of sound.

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

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

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

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

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

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

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

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

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

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

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

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

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