The SAT likes to replace numbers with letters. Here's a game that will show your teen that cracking the code is a lot easier than it looks.

Most kids love to play spy. Here's a way to have fun with mysterious codes while mastering an ordinary, necessary skill: first grade spelling.

These secret code activities are fun, and also provide fourth graders with great opportunities to practice language development and logical reasoning.

Teach your child Morse code, and a little bit of history that she'll pick up in a flash!

Help your child work on her code breaking and writing skills while covertly developing her analytical thinking skills with this fun activity.

Demonstrate how to tell the age of an egg without having to crack it open.

To make this unique Valentine's Card, all your child will need is his creative mind, some paper, and a pencil.

Encourage a bit of mystery and intrigue by teaching your clever kid how to create and use secret codes.

For most second graders, a good secret code is just about irresistible. Here's one that builds math facts while you're at it!

This nutcracker soldier won't crack any nuts, but he will hide candies. Make a nutcracker soldier with your child this Christmas and have a cracking good time.

Here's a simple math activity that has your child using her basic addition facts to solve a secret code.

Here's an activity that will help her figure out the meaning of strange operators by understanding how to use the code key.

Forget markers or crayons. For a really unusual art project, close the art supply cabinet, and crack open the pantry! Use rice to make pictures.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

It's a race against time to see how quickly she can color match and correctly place all of the water beads!

How can you get your child started if they're totally stumped? All it takes is a solid plan, man. Here's how to get started.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

Celebrate the 100th day of school by counting and spelling your way to a "$1.00" word in this 3rd grade math and reading game.

This activity is a fun challenge for students who have just started learning to program educational robots.

This science fair project idea explores how water and ice can change the form of rocks.

Here's a brain-challenging treasure hunt for your third grader, calling upon math skills with money and with decimals!

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Your kindergartener will have a blast helping you craft these fun, eco-friendly potted place cards.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Breakfast is the most important meal of the day, and your child can help the whole family start things right with this flavorful egg and tomato dish.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

Make quick sweet and salty walnuts, a delicious addition to fall salads and fruit and nut plates, or a simple afternoon snack.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.