This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

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.

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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

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

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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.

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!

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.

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.

This project investigates the affect of storage temperature on microwave popcorn.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

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

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This project examines whether playing music during class helps students learn or if it distracts students from learning.