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 Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

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.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

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

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

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

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

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.

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

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

Science fair project that determines whether mass and weight are the same or different.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

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

In this project children practice the scientific method while playing with puffy paint.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

This project determines what category of person is most likely to be ticklish.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

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

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

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?