Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Start your toy engines -- this is going to be a fast and friction-filled race!

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

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

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

This science fair project idea examines whether people can decode scrambled messages.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

Determine how good we are at direct and indirect observation.