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The value of the degree specified in the Turn block can be changed according to our requirement.

                      turn     15  degrees       turn    15  degrees

                                                                                             0
                                                                                     -45
                                                                                                      45


                                                                                 -90                     90



                                                                                 -135
                                                                                                     135
                                                                                            180
                            Clockwise                 Anti-Clockwise


                     UNDERSTANDING BLOCKS

                 Blocks are puzzle piece shapes that are used to give instructions to the computer. A collection of
                 inter-locked blocks, called script makes a code in Scratch. When you double-click on the script,
                 Scratch runs the blocks from top to bottom. To use a block, simply drag it onto the coding area.
                 To remove a block from a script, just drag it to the left, away from the coding area.
                 Block Categories

                 The blocks in Scratch are divided into different categories based on their functions. In most of
                 these blocks, you can change the value in the block to suit your script.

                  Block category                                           Use

                                     The blocks that are used to control the movement of a sprite are known as
                        Motion       Motion blocks. These are blue in colour.
                                     The blocks in purple colour are Looks blocks. These control how a sprite
                        Looks        appears on stage.

                                     Sound blocks are in pink colour. These control sound functions. You can add
                                     music to your Scratch project by using Sound blocks. You can even record
                        Sound
                                     your voice and save it. You can play the recorded audio with a sprite.
                                     These blocks are used to draw shapes and patterns on the stage, change the
                         Pen         pen colour and size.

                                     An event is  a happening  which occurs due to some  other  things that
                                     happened before it. So, Events block actually control how the blocks in a
                        Events       script, will start to run, if a particular action is done. Events blocks control
                                     events and the starting of scripts. These are yellow in colour.
                                     These blocks  control the blocks  within your scrips, inserting conditional
                        Control      statements, loops, repeats and pauses.

                                     These blocks identify  what's  happening  at  a  given  point  and  make your
                       Sensing       sprites or background respond to user actions.





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