How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

This science fair project idea compares biodiversity between drops of water.

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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

By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.