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?

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

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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

Work on measurement by sliding cards along a table with your second grader in this fun game. Use centimeters or inches, add up your totals, and see who's won!

How powerful is the reaction between baking soda and vinegar? Find out here!

Get estimating with this spooky activity that asks your young mathematician to rely on their problem-solving skills to figure out how many items they believe are in spooky Halloween jars!

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

Think you need a special dehydrator to make your own fruit leather? You can actually make a delicious version of this popular kid's snack in your own oven.

Making decorative pottery is a great way to experiment with making patterns and texture on a traditionally smooth surface.

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.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

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

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Practice measurement using centimeters in this fun math race designed for your second grade student!

Have your child construct his own Christmas tree from construction paper while cutting, overlapping and measuring to create an adorable modern design.

Hiding protein-rich quinoa and a variety of fresh vegetables, these meatballs are the perfect answer to kid food woes.

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

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

Add these fun chocolate Groundhog Day cupcakes to your holiday desert recipe repertoire! They're fun to make with your kids and a delicious winter snack.

Topped with roasted pumpkin, prosciutto, herbs, and feta, these pita pizzas are a healthy, seasonal alternative to your classic pie.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Have your student draft a blueprint for a haunted house, and trick (or treat) them into learning about geometry in the process.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Invite your second grader to help you measure and mix these fresh, cool concoctions!

If you're looking for a fun way to have your child gain practice pattern-making while working out fine motor skills, making Washi eggs is the perfect activity.