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Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

This fascinating science fair project explores eye color genotypes.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Slip some science into storm watching with a homemade rain gauge!

This project will explore whether music influences physical endurance.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

This science fair project idea explores whether certain physical and mental traits run in the family.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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

Here's how you and your teen can stage your own formal debateâbeyond arguing why chores are unethical! Formal debates improve teens' critical thinking skills.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

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

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

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

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.