Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This science project teaches students to classify different shapes of leaves.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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

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

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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

Find out which kind of bubble wrap fares best when put in impact.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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.

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 is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Discover whether a metal will expand under hot water.

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

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

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

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.