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Step  6    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  7     Drag a start sound Meow from the Sound             if
                      blocks and place it inside the if…then block.               touching edge      ?    then

            Step  8     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 for Ask the user for age,                set  age    to 0

            User types in age, Display the stored answer.                     ask   What’s your age?  and wait
            Step  1     Create a variable named age.                             set  age    to answer



            After creating  the  variable  age, let  us create  the          say   Join  I Know your age is  answer
            following block stack for the sprite: Now, click on the
            green flag.







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