Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Find out whether putting something on top of a plant will inhibit its growth.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

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

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea deals with the qualities of shade on a sunny day.

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

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.