Is it a square or a circle? See if you can trick your friends with this zany science project!

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

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.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

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

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

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 fair project idea identifies clouds as a means of predicting the weather.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

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 liquids of different densities.

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 fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This science project idea examines the effect of microwaving on various objects.

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.