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Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

This science fair project idea explores how length affects the weight a bridge can hold.

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

Free science fair project idea examining how different types of water affect plant germination and growth.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Making your own glass cleaner is easy, effective and inexpensive!

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

This science experiment tests if dog saliva can really help heal wounds.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

Test out various brands of permanent markers to see which one is least water soluble.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This project examines whether humans can intuitively grasp numeric values greater than three.

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

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.