Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Science fair project that determines whether brain size is correlated with intelligence.

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

This science fair project idea compares biodiversity between drops of water.

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

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This science fair project idea determines what household items are good conductors of electricity.

The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This experiment investigates if small changes in your diet can alter your basal body temperature.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This experiment evaluates how much influence an enticing package has on childrensâ willingness to try a new snack.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

Science fair project that explores the natural process of limestone formation.

This science fair project will help students learn about non-vascular plants, such as mosses.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

This science fair project idea demonstrates the process of land erosion.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

Explore the effect of wind speed on the burning rate of a candle.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.