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    Step  3    Click the Motion button to show the Motion blocks.                      move 100    steps

                     Step  4     Drag a Move 10 steps block to the code area and change the
                               value to 100.

                     Step  5    Click the Control Button to show the Control blocks.                      if       then

                     Step  6    Drag an if…then block to the code area.

                     Step  7    Drag  a  touching  mouse-pointer block  from  the Sensing block  and use it
                               with  an  if block.  Click  on the  drop-down arrow present  next  to  touching
                               mouse pointer block and select edge from the list.

                     Step  8     Drag a start sound Meow from the Sound             if
                               blocks and place it inside the if…then block.               touching edge      ?    then

                     Step  9     Click  on Green Flag button  to  see the               start sound  Meow
                               output.

                                    Role of Video Sensing extension in Scratch

                                                           Keep on clicking this icon until the
                                                                cat reaches the edge.

                     Using the Sensing Menu                                            when       clicked
                     Now use the Sensing menu to ask the user for age, user            set  age    to 0

                     types in age or display the stored answer.                        ask   What’s your age?  and wait
                     Now, create a variable named age.                                    set  age    to answer

                                                                                      say  Join  I Know your age is  answer

                                                                                                      More on Scratch  95

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