Fill in the Blanks The components of MartyOnline version This activity will evaluate your understanding of Marty's components and what they do. by Paul Nicholson 1 Humanoid character personality Form is Marty's and ! 2 turn a wiggle walk sidestep kick dance ball The unique walking mechanism allows Marty to , , , , , and . 3 eyes legs arms The nine metal - geared position sensors are smart servo motors in the , , and . 4 screenless color infrared foot The sensors are and sensors for coding . 5 range eyebrows expressed Marty's move , giving him a of emotions . 6 plastic quality robust parts moulded classroom ready Marty has that make him - , , and built to last . 7 sensors acceleration tilt The and are in Marty's head . 8 rechargeable play 2 hours 3 battery Marty runs off a that allows him to for - when fully charged . 9 talk play sounds speaker Marty uses a to and .