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!

This hands-on activity gives your child an opportunity to apply various strategies to solve a problem and to check if his answer makes sense.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

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

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

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

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

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!

This first grade science activity is great for winter! Your child will grow and observe her own amaryllis bulb, keeping a journal of her scientific findings.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

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

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

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

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

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

Make this delectable custard, meringue, and graham cracker pie will give your fifth grader practice with measurement and get him interested in the kitchen.

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

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.

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!

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

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

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.

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.

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!

This simple experiment serves as an introduction to the greenhouse effect.