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Try this entertaining and educational math activity that will teach your child how to add and subtract decimals.

How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

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.

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 game is a great way to help your child remember the names of shapes. Give it a go and before you know it, your kid will have all her shapes down pat.

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

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

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.

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

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.

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

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

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.

Use the holiday gift giving season as an excuse to give your fourth grader a valuable lesson in making and keeping a budget!

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!

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.

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

Got a kid who loves fashion? Help her develop her own unique style with this tie-dye project using natural dyes.

For a fun activity that takes the dull out of decimals, show you child how to gain a better understanding of decimals...as dollar amounts!

If it's Easter, it must be time for egg hunts. But we have to admit, most kids would rather take a bite out of a yummy cupcake than a hard-boiled egg.

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

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