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Interface of Scratch
The Scratch application window has the following components:
Tabs Go button Stop button
Stage Area
Blocks
Palette Backdrop
Script
Sprite
Coding area
Sprites Pane
Stage: It can be viewed in two sizes small and large. Stage uses a 2D coordinate system with
X(Horizontal location) and Y(Vertical Location) coordinates to mark the location of the sprite
on the stage. The center of the stage is at (0, 0).
Backdrop: It is a background of the stage that sets the scene for your project. You can have
multiple backdrops and switch between them during the execution of your project.
Sprite: It is the character which acts on the stage. The default sprite in Scratch is an orange
cat. Every sprite has an x and y position on the Stage where x is the position of the sprite from
left-to-right and y is the position from top-to-bottom.
Go Button: It is the green flag and when you click on it, it runs a Scratch program.
Stop Button: It is the red button which on clicking stops the running Scratch program.
Sprites Pane: It shows all the details of sprites and backdrops used in a project. You can add,
delete, see the name and location, increase and decrease the size of a sprite. Similarly, you
can add or change the backdrop.
Blocks Palette: It displays the categories of blocks based on their functions and uses.
Script: Script is a collection of a number of stacked blocks. Script is actually a program which
gives the instructions in the form of blocks. A script must have at least two blocks.
Coding Area: It is the area where you stack your blocks to create scripts. When we click on a
script, all the blocks execute from top to bottom.
Tabs: Scratch has mainly three tabs which are described below:
Code Tab: It contains block categories and the list of blocks in a category. The categories
are—Motion, Looks, Sound, Pen, Events, Control, Sensing, Operators, Variables, and
My Blocks. All block categories are of different colours. The blocks connect to each other
like a jigsaw puzzle and create scripts.
Learning Scratch 63

