Hohm2Oct22.xmlUnit0 10.178080808080949 25.343434343434524 56 Comment Comment true false Puzzle 2: What's up and down? Here is some code to make the robot nod its head up when the Up arrow key is pressed and nod down when the Down arrow key is pressed: It doesn't work properly; the code has a bug. How do you think the robot will move when the Up and Down arrow keys are pressed? Try: Press the Up key. Does it do what you expected? Press the Down key. How about now? Why does it do that? Puzzle 1: Can you modify the code so that when the Down key is pressed robot looks down and when the Up key is pressed the robot looks up? Puzzle 2: By using these extra blocks; can you make robot also close its eyelids when the down arrow is pressed and open them when the up arrow key is pressed? 622.905982905984:418.57031857032:-13.9330303030304:172.727272727273:True:#FFFF4500:#FFFFFFFF:16:#FFFF4500:0 Hohm2Oct22.xmlUnit1 34.148989898989726 155.6237373737373 75 Events WhenGenericKeyPressed false false up arrow up arrow 34.148989898989726 187.6237373737373 75 Motion GenericSetMotor HeadNod Motor false false both HeadNod 0 HeadNod Hohm2Oct22.xmlUnit2 230.73989898989896 157.89646464646452 80 Events WhenGenericKeyPressed false false down arrow down arrow 230.73989898989896 189.89646464646452 80 Motion GenericSetMotor HeadNod Motor false false both HeadNod 10 HeadNod Hohm2Oct22.xmlUnit3 69.005244755244462 592.97377622377621 81 Motion GenericSetMotor LidBlink Motor false false both LidBlink 10 LidBlink Hohm2Oct22.xmlUnit4 66.05069930069908 551.51923076923072 82 Motion GenericSetMotor LidBlink Motor false false both LidBlink 10 LidBlink Sensing GenericMotor HeadTurn false false 5