The past is full of mysterious events. How did ancient people build pyramids. What is Stonehenge for? Maybe the explanations for these events are simple … or maybe there's something strange going on. Explore history's mysteries through closely level text, dynamic imagery, and visual infographics.
Build a Scribble Bot with this first book to building a robot using a $5 motor and a battery. Step-by-step instructions and illustrations teach young engineers the basic construction of simple robots. Using simple materials readers will create basic robots that wiggle, scribble, and race.
Build a Crazy Car bot with this first book to building a robot using a $5 motor and a battery. Step-by-step instructions and illustrations teach young engineers the basic construction of simple robots. Using simple materials readers will create basic robots that wiggle, scribble, and race.
Build an Inchworm Bot with this first book to building a robot using a $5 motor and a battery. Step-by-step instructions and illustrations teach young engineers the basic construction of simple robots. Using simple materials readers will create basic robots that wiggle, scribble, and race.
Build a Motorcycle Bot with this first book to building a robot using a $5 motor and a battery. Step-by-step instructions and illustrations teach young engineers the basic construction of simple robots. Using simple materials readers will create basic robots that wiggle, scribble, and race.
