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

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

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

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This project explores whether the tempo of the background music we hear in a businesses is important to the environment and how customers move.

Find out whether a longer airplane will fly farther or a wider paper airplane.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

In this science fair project, students examine how temperature affects sugar transport within a plant.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

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

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

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

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

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

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.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

Test your friends to find out if you can replicate the placebo effect's incredible results.

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

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

This science fair project idea tests the efficiency of short term memory.