Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

This science fair project idea determines which flower lasts the longest.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

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

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.

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

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

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.