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    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
                     Now use the Sensing menu to ask the user for age, user types in age, or display the stored

                     answer.

                     Now, create a variable named age.                                 when       clicked

                                                                                       set  age    to 0
                     After creating  the  variable  age, let  us create  the
                     following block stack for the sprite: Now, click on the           ask   What’s your age?  and wait
                     green flag.                                                          set  age    to answer

                                                                                      say  Join  I Know your age is  answer

                                                                                                      More on Scratch  99

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