Meet Metallicus, the little metal-detecting robot that you build from with the Metal Detector Robot Science Kit. He can teach you the principles behind metal detectors, and find you buried treasure! All you need to do is to build him, then push a button on his remote control to make him roll around -- he'll beep to notify you if he finds anything cool. When he gets tired, just remove the small hand-held metal detector and go detecting on your own.
The Metal Detector Robot Science Kit comes with everything you need to build Metallicus. Assembled, Metallicus measures 3-3/4" tall x 5-3/8" long x 3-1/8" wide with a small DC motor/gear drive and a hard-wired remote with a forward/reverse switch. Metallicus comes with 3 button cell batteries for the detector, but requires a single AA battery for the robot (not included). The Metal Detector Robot Science Kit is recommended for ages 8 and up.