This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

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

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

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

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

This science fair project idea experiments with spinning color wheels and optical illusions.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

This science fair project idea produces varying pitches of sound.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This project examines whether people's taste perception is influenced by what they see.

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

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Check out this cool science fair project on identifying rocks and minerals for kids.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

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