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