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

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

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.

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.

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

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.

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

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.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

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

Start your toy engines -- this is going to be a fast and friction-filled race!

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

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.

In this science project, the center of gravity is explored.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

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

Make a backbone model to explore human anatomy and life science.

This science fair project idea investigates how color affects temperature.