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!

Is your third grader bombing around on a bike these days? Here's a way to put all that fun time together with some math learning, too.

Find the area in this fun math card game. You'll help your child start thinking in terms of units as you create shapes out of playing cards.

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.

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.

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!

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.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

Calling all power-shoppers! This game is a fun way for kids to learn life skills, and flex their math muscles at the same time.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

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.

Nothing chases the blues away like a trip to the boardwalk. Bring the fun home with this do-it-yourself version that sneaks in some math practice.

Play this fun basketball game to help your third grader master their multiplication tables.

This heart print makes the perfect simple and sweet gift for Valentine's Day!

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

Here's a super fun game to get in some place value practice with your child!

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

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Multiplication facts are a necessary skill, and this board game provides a fun way for your third grader to practice them!

Help your child practice multiplication tables with this mental and physical multitasking game that uses a hula hoop to get into the swing of things.