Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

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

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

This science fair project idea investigates food preference of birds.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

The goal of this science fair project was to evaluate the ElectroMagnetic Field produced by Radio Frequency Identification transmitters.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

This project concerns activity happening millions of miles away, on the sun.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This project explores whether music affects the growth and health of plants.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

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

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

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

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

A math project teaches students to use a clinometer to gauge the height of very tall objects like trees & to think of better ways to measure how high they are.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

The objective of this experiment is to evaluate the effects of acid rain on plants.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

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