In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

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

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

This experiment explores whether caffeine improves athletic performance.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

Science fair project that examines how cell membranes allow the inward and outward flow of materials as demonstrated by eggs.

This science fair project idea investigates food preference of birds.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

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

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.

The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.

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.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.