Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

This science fair project examines the different composition of fungi and plants.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

This classic children's game demonstrates how sound travels through air vs. through a solid.

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

In this experiment, you will be making your own paper flashlight by conducting electricty with graphite.

Does "short circuit" mean that electricity takes a short course? This science experiment provides steps to help you get to the bottom of this science mystery.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Cleaning can be a chore, but not with this sudsy experiment!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

This science fair project demonstrates the "power of conformity".

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Discover whether a metal will expand under hot water.

Learn how different types of soil affect how animal tracks form in this experiment!

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

This project explores ways to prevent static electrical shocks.

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

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.