Find out whether matte or shiny nail polish lasts longer.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

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

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Show your teen how to analyze the nutritional value of her favorite meals. She may be surprised to find out how healthy--or not--her favorite foods are!

This experiment investigates if small changes in your diet can alter your basal body temperature.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

This science fair project will help students learn about non-vascular plants, such as mosses.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

This experiment will explore the possibility of creating an infinite object by hand.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

The goal of this science fair project is to determine which cheese grows mold the fastest: Vermont Cheddar, American, Brie, or Camembert?

Science fair project that uses iodine vapors to develop latent fingerprints on a non-porous object.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

This project examines whether sugar substitutes are as sweet as real sugar.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.