Age 11-15

Make your own color-changing slime that changes from green to blue depending on the temperature. Ooze Labs are fun and simple science experiments i...

Grow sparkling, green crystals overnight from a safe solution of potassium aluminum sulfate. Single out the largest crystal shard, redissolve the r...

Plus-Plus is a whole new class of construction toy! One simple shape contains endless possibilities and hours of fun. Each piece easily connects to...

Plus-Plus is a whole new class of construction toy! One simple shape contains endless possibilities and hours of fun. Each piece easily connects to...

Plus-Plus is a whole new class of construction toy! One simple shape contains endless possibilities and hours of fun. Each piece easily connects to...

The third book in the Warped Galaxies series. An exciting new series of fantasy for middle-grade reeaders from Black Library. Epic heroes, mighty a...