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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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

This science fair project idea demonstrates that plants give off water.

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Do different types of oil mix or stack? Find out in this science fair project idea!

This science fair project idea investigates how the shape of an object affects drag.

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

This science fair project teaches students about wilting and browning of salad greens.

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

This science fair project idea explores how length affects the weight a bridge can hold.

Science fair project that examines condensation and the conditions needed in order for dew to form.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.