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.

Help your child get comfortable with the concept of estimation, which will come in handy during everything from standardized tests to future shopping trips!

Practice multiplication facts and geography at the same time in this fun third grade math card game.

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.

Does your fifth grader need a study buddy for geometry? Forget about a tutor. Help him make his own geometry dictionary!

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

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?

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.

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

This recipes is so easy your child gets to be master chef for this kitchen activity. He'll bake peanut butter banana oatmeal cookies that happen to be vegan!

This activity will help your child tackle those tricky fraction word problems by way of a hands-on method.

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

This caterpillar math game gets your child to work on addition and subtraction. Challenge your child's math prowess with this fast-paced caterpillar math game.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Practice conversions within the metric system in this fun math card game for third graders.

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

These delicious Easter Basket Cupcakes are a simple, creative holiday treat. These cupcakes sit in waffle bowls with festive coconut grass and jellybean eggs.

Race to double numbers in this competitive card game. Try one-digit or two-digit numbers, or more!

Play a game of "restaurant" to reinforce real-world applications of counting and using money.

Explore the math concept of probability with your fifth grader on "lucky" St. Patrick's day this year!

Create equations in this strategic math card game. Your second or third grader can practice addition, subtraction, multiplication, and division in a new way!

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

Help your child "step up" to second grade math fact challenges with a fun addition and subtraction game in your very own kitchen.

This fall, bake some festive caramel apple cupcakes with your second grader and help her build her math skills while you're at it!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

This fun geometry game requires players to use measurement, find perimeter, and draw polygons. It's great for a fourth grade math student!

Your child can brush up on her math skills by charting the length of time that each candle on the menorah takes to burn.

Based on the popular "I Spy" game, this activity lets your kid practice important skills like number identification and place value.

Invite your first grader to play this subtraction sacks game to get her actively involved in understanding and memorizing subtraction facts.

Pfeffernusse are spicy and sweet Christmas cookies from Germany. Make a batch of traditional pfeffernusse this holiday season.