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

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This science fair project idea investigates how color affects temperature.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this project students experiment with making music using only glasses of water.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

In this experiment we will be determining whether birds prefer certain colors of seed.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This science fair project idea explores substances that cause a bubble to last longer.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This science fair project idea explores the different properties & interactions of sugar molecules.

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

This project investigates the affect of storage temperature on microwave popcorn.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

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.