This science fair project idea explores which is better for diffusion and cell absorbing, more surface area, or more volume.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea explores how water and ice can change the form of rocks.

This experiment evaluates whether a personâs dominant hand is more sensitive than their non-dominant hand.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

Examine the effect of pressure on carbonation in soda.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Science fair project that demonstrate how abrasions are formed on rocks in nature and the variations between types of rocks.

Science fair project that examines the relationship between the size of a bubble and how quickly it falls. What is the correlation?

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

Examine the connection between temperature and chemiluminescence.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

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

We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.

This science fair project researches the most effective method to cut an onion and stay tear-free.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This science fair project explores how salt and sugar affect the melting rate of ice in water.