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.

How many steps long is the hallway? Kids put their graph-making skills to work as they make a step map of their own house.

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!

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

Make this delicious warm apple bread for Hanukkah.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

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

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

Combine art, history and food with this unique project! Your child will make her own butters, and learn a little about Colonial history at the same time

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!

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.

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

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.

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

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