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

Figuring out fractions can be a challenge! But with this game your child will become more comfortable converting fractions after only a little practice.

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

Play multiplication war, a fun card game, with your child and before long those annoying multiplication facts will be part of her mathematical skill set.

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

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.

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

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

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.

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.

These sparkling earrings look fancy but they're super simple to make using inexpensive craft items.

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?

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!

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!

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

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