In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

This science fair project idea determines the most effective method of preserving food.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This project examines what types of objects burn and which burn faster and cleaner.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

In this project students experiment with making music using only glasses of water.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Find out whether matte or shiny nail polish lasts longer.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea investigates how color affects temperature.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

In this experiment we will be determining whether birds prefer certain colors of seed.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.