This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

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

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

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

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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.

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.

This science fair project idea raises awareness of a real ecological issue.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

This science fair project idea uses the process of chemical weathering to change a mineral.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

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

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

Examine spreadsheet functions and design a new way to utilize spreadsheets. Analyze a spreadsheet program to familiarize yourself with its capabilities.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!