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?

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

Here's a place mat your second grader can create, based on the classic frontier tradition of patchwork quilting.

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

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Try this fun math card game and practice place value with your second grader! Decide which number is bigger in order to earn points!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Practice of math facts is usually limited to drill sheets and flashcards. But kids are more likely to tune in to math facts if practice is presented as a game!

Help your kindergartener practice his shape recognition and develop his fine motor skills by making a scarecrow at home.

Help your child stay physically and mentally active with this group aerobic fitness game that's good for the heart and mind alike.

Does the idea of taking your child to an art museum sound daunting? Create your own museum and give your child some practice with shapes!

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

Put your kid in charge of her own survey! She'll poll her relatives and friends, collect information, and then create a colorful chart to display her findings.

Help your kindergartener learn to manage a telephone with this homemade keyboard that also helps kids practice letters and numbers.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Here's a math activity that uses coin riddles to help your third-grader improve his coin-counting and logical thinking skills.

Declare a "Pocket Day" in your house and help your child practice his addition skills as he counts how many pockets the family is wearing that day!

Support your first grader's counting and reading skills while laughing and running in this fun playground game.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Pumpkin carving party activities are great for a pre-Halloween party. Try pumpkin carving party activities, including jack-o'-lantern ideas and fall recipes.