Page 81 - Computer Genius Class 03
P. 81
Sound Block
Sound blocks are in pink colour. They control sound functions. We can add music to our
Scratch project by using Sound blocks. You can even record your voice and save it. You can
play it with a sprite.
block plays a sound without pausing the script.
The sound options are “Meow” or recorded sound.
block plays the sound by pausing the script
until the sound has finished playing. The sound options are
“Meow” or any recorded sounds.
To stop all sounds being played on all Sprites, use block.
block clears all existing sound effects.
Events Block
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 script will start to run, if a particular action is
done. Events blocks control events and the starting of scripts.
They are yellow in colour.
block activates the script when the green flag or Go
button is clicked.
block activates the script when the chosen key is
pressed. You can choose from the given keys or you can choose the option any.
block activates the script when you click the sprite.
Control Block
They have looping blocks which are used when the same blocks have to be repeated for a
number of times. The most commonly used control blocks are:
block pauses the running of the script for the number of seconds given in the
block. You can use this block when two move or speak blocks are coming one after the
other.
The repeat block repeats a set of blocks for a given number of times. This
block is also used to draw shapes where we have to give the same blocks
again and again for a number of times.
The forever block keeps on repeating a set of blocks till the stop button
is clicked. This block is similar to repeat block and expands automatically
to accommodate the blocks you snap inside it.
More on Scratch 79

