This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

In this science fair project, students evaluate test subjects to determine if certain personality traits are more common in frequent users of social media.

Research information on vitamin content in foods, Examine the effect of vitamins, test organic samples of fruits, meats, grains for vitamin content.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

Test whether cutting up meats will make it cook faster than just cooking it whole.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Test your skills as a weather forecaster, and learn some science terms on the way!

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

The 100th day of school is an important benchmark for kids in the lower elementary grades. Help your kid create a 100 days of school shirt to celebrate!

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.