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This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Demonstrate how to tell the age of an egg without having to crack it open.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

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

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Challenge your learner to design and build a city of their own in this creative engineering activity.

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.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

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

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

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?