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

This project uses toy cars to determine how friction and gravity affect cars and braking.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

This project determines how much the rebound rates of tennis balls change after ten games.

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.

Think about the adaptive utility of an important aspect of our physiology.

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

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.

This science fair project idea determines how your body responds to allergies.

This science project examines the thermal properties of several major greenhouse gases.

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.

Here's a pressed leaf card project that puts science and writing together for your second grader.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

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

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.