Find out which type of sponge holds the most water.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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.

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

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.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

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

This project explores ways to prevent static electrical shocks.

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.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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.

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.

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

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

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