Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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

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

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!

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

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

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

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

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!

Give your second grader a chance to get his feet wet with measurement before he moves onto the more complicated stuff by trying this activity with him at home.

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.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

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!

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?

Countries all around the world have been using the abacus for thousands of years to make math easier. Have your kid make his own abacus to practice arithmetic.

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!

Get back into school with this exciting architecture exploration! In this craft activity your child will research, draw, and build his own school.

Here's a thought-provoking activity to make new vocabulary words "stick" in the mind of your young learner.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

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

Get your child excited about measuring with this fun and easy household measurements activity.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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.