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

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

This science fair project idea investigates whether plants can survive being frozen.

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

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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.

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

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

This science fair project idea examines liquids of different densities.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

This science fair project idea explores which fruit molds the fastest.

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

This science project allows students to study the psychology of happiness.

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

The purpose of this science fair project is to build a basic radio.

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

This science fair project idea investigates how color affects temperature.

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

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

This science fair project idea produces varying pitches of sound.

This science research project challenges students to think of more effective lobster farming methods.

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

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

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 explores the different properties of matter.

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