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.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

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.

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

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

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

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.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

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 explores the egg's thin membrane.

This science fair project idea examines liquids of different densities.

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

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 teaches students the differences between fruits and vegetables.

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.