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    MOTION BLOCKS

                     Motion blocks let you control a sprite's movement on the stage, allowing it to move,
                     turn and change direction. They are blue in colour.

                     Some basic motion blocks used in Scratch and their descriptions are as follows:

                                                         This block makes  the  sprite  move  forward  and
                                                        backward, allowing it to travel in both directions.

                                      move  10  steps   For example: Move 10 steps moves the sprite forward
                                                        by  10 steps  or Move -10  steps  moves  the sprite
                                                        backward by 10 steps.

                                                         This block  makes  the sprite  turn to  the right
                                  turn    15  degrees
                                                        (clockwise), rotating in a circle.

                                                         This block makes the sprite turn to the left
                                  turn    15  degrees
                                                        (anticlockwise), rotating in the opposite direction.

                     EVENTS BLOCKS

                     Events blocks run the script on the stage and control the start of scripts. Without an

                     Events block, no program will run. They are light yellow in colour.

                     Some of the commonly used Event Blocks with their description are as follows:

                                                         This block starts  the script  when  the green flag  is
                                      when    clicked
                                                        clicked. It is used to begin a project.

                                                        This block starts the script when a chosen key on the
                            when  space    key pressed
                                                        keyboard is pressed.

                                                         This block runs the script when the sprite is clicked.
                                   when this sprite clicked

                     LOOKS BLOCKS

                     Looks blocks changes how a sprite looks or what it says on the stage. They are
                     purple in colour.

                                                                                                 Say Hello to Scratch 3  87

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