Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

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

Create groups of volunteers based on frequency of playing video games. Compare driving records. Analyze data, interpret findings.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Learn about the factors that influence group conformity.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

This cool middle school science fair project idea helps students explore the role phototropism plays in the growth of green plants.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

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?

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

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.