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Blocks Palette: It displays the categories of blocks based on their functions
                     and uses. These blocks within the same category share the same colour which

                     allows better distinction of the parts of a program.
                     Coding Area: It is also called the scripts area where you stack your blocks to
                     create scripts. If you save a project with a script, the script will also be saved.
                     When we click on a script, all the blocks execute from top to bottom.

                     Script: Script is a collection of a number of stacked blocks. It gives stepwise
                     instructions to a Sprite to do something on the stage.
                      Script is actually a program which gives instructions in the form of blocks. A

                     script must have at least two blocks.
                    Backdrop: It is the background of the stage.

                     Tabs: Scratch has mainly three tabs which are described as
                     follows:
                        Code  Tab:  It contains block categories and  the list of
                        blocks in a category. Some block categories are—Motion,
                        Looks, Sound, Pen, Events, Control, Sensing, Operators,

                        Variables,  and  My Blocks. All block categories  are  of
                        different colours. In scratch, each block performs a task in
                        a project. The blocks connect to each other like a jigsaw
                        puzzle and create scripts.
                        Costumes Tab: In this tab, you can add and make changes
                        in the appearance of the Sprites and backdrops.

                        Sounds Tab: In this tab, you can add and make changes in the sounds of the
                        Sprites and backdrops.




















                 Clickipedia




                       Scratch can easily run on different operating systems including Windows,

                       Mac OS and Linux.



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