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    when     clicked

                                       set voice to  tenor                  when     clicked

                                       speak  Hello there! Are you a robot?        set voice to  giant

                                wait  1  seconds                            wait  5  seconds

                                       speak  Can you talk?                        speak  Yes, I can! I'm a friendly robot.

                                wait  7  seconds                            wait  1  seconds

                                       speak  Of course! Let's play together.      speak  Do you want to be friends?

                     Click the Green Flag and hear Andie and Retro Robot chat using cool computer voices.

                                Quick Quiz

                      1.  Which extension allows a sprite to speak typed words aloud?
                                 a.  Video Sensing                                   b.  Text to Speech

                      2.  What happens when you click the Green Flag in the Text to Speech project?
                                 a.  The game ends                                   b.  The sprites start talking

                                  Recap

                                  Variables make the game more interactive and engaging.

                                   There are many powerful extensions you can use to make your projects more dynamic
                                and interactive.
                                   The Video Sensing extension lets you use your webcam to control your project.
                                   The Text to Speech extension lets your sprite talk.

                                                       Assess Yourself

                           Choose the correct option.

                           1.  Identify the block category which in not present under Code tab by default.

                                      a.  Video Sensing                             b.  Sensing

                                      c.  Variables                                 d.  Control

                                                                         Designing Games and Storyboard in Scratch 3   81

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