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

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

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

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

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 fair project idea identifies clouds as a means of predicting the weather.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

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.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

This simple experiment serves as an introduction to the greenhouse effect.

This hands-on activity gives your child an opportunity to apply various strategies to solve a problem and to check if his answer makes sense.

Make this delectable custard, meringue, and graham cracker pie will give your fifth grader practice with measurement and get him interested in the kitchen.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.