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

Use a recycling project to hone your childâs sewing skills and clean up her art supplies when she turns the leg of an old pair of jeans into a storage basket.

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.

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

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

The crust is fun for kids to mix and roll out, and the filling overflows with vitamin and anti-oxidant packed berries!

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

Instead of loading up on mayonnaise based potato salad, your child can whip up something healthier: German potato salad!

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

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This activity with add some fun and education to long car trips. Perfect for family vacations!

Simplify fractions with your child in this fast-paced math card game.

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.

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

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

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.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

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

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

This activity will further your child's ability to interpret graphs and apply math skills in a real-world situation.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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

Turn any sunny summer day into a fun and special occasion by having a watermelon seed spitting contest!

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!

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

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.

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

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.