In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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

People have favorite flavors, but what about ants? Which ant food is the most popular?

Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

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

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

In this science fair project, students make their own rain gauge to measure rainfall.

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

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.

This experiment provides a graphic illustration of the chemical reaction that occurs when you activate a hand warmer.

This science fair project idea examines which type of insulation holds in the most heat.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

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

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.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

This science fair project idea explores discover whether mixing solutions of equal distances from neutral pH (7) will create a solution close to pH 7.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.