My saying for distinguishing between a waxing moon and a waning moon is, "wax on, wane off." When the moon is "turning on" or on its way to a full moon, we call it waxing. When the moon is "turning off" or on its way to a new moon, we...

Engineering design-based activities make learning science fun. Young engineers design dams, lifeguard chairs, musical instruments, candy bags, and much more. They also use measurement skills to solve the mystery of the missing pin. Each...