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.

This cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This experiment will examine and precisely measure the amount of sugar in various sodas.

This science fair project idea produces sounds by creating vibrations using different objects.

In this science fair project, high school students will try to determine the mathematical patterns in JS Bach's two movement preludes and fugues.

This experiment observes inattentional blindness and investigates whether certain age groups or genders are more likely to demonstrate this phenomenon.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

Examine whether males or females are more likely to have a higher center of gravity.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Do you think heat can affect a plant's growth rate?

Determine which material produces the strongest static charge.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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

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.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.