This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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

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.

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

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

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

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

In this fun experiment, we'll find out how color affects heat absorption!

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

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

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Discover which fabrics shrink the most in the wash and why.

This science fair project idea identifies trees using a dichotomous key.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This science fair project idea explores alcoholic fermentation at work by making your own soda.