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What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project idea investigates the hardness property of minerals.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Science fair project that examines condensation and the conditions needed in order for dew to form.

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.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project examines how seeds hitchhike on animals and clothing.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea demonstrates that plants give off water.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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

This science fair project idea determines what household items are good conductors of electricity.

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