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These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea investigates if fats add to the flavor of food.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

Check out this cool science fair project on identifying rocks and minerals for kids.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

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

This project concerns activity happening millions of miles away, on the sun.

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Challenge your learner to design and build a city of their own in this creative engineering activity.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

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