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.

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

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.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

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

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

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

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

People have favorite flavors, but what about ants? Which ant food is the most popular?

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

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.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

This science fair project idea investigates if fats add to the flavor of food.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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.