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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?

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

The objective of this science project is to determine the length of time for different seeds to germinate.

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

This science fair project idea determines which method of hand cleansing is the most effective.

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

This science fair project idea investigates how the shape of an object affects drag.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

This science fair project teaches students about wilting and browning of salad greens.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.