Page 90 - TP_Prime_v2.2_Class_3
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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.
Costumes Tab: In this tab, you can add and make changes in the appearance of
Prime (Ver. 2.2)-III Blocks
the sprites and backdrops.
Sounds Tab: In this tab, you can add and make changes in the sounds of the
sprite and backdrop.
Blocks are the codes or commands used to create a program in Scratch. It looks like
a puzzle piece and each block connects with the other block to perform a task.
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Motion Block
The blocks that are used to control the movement of a sprite are known as Motion
blocks. They are blue in colour. For example, the motion block is used to move a
sprite.
Here, 10 is the number of steps that the sprite will move forward move 10 steps . You can
change the number of steps. To make the sprite move backward, give a minus (–) sign
before the number as shown move -30 steps . This will move the sprite 30 steps back on
the stage.
Looks Block
The blocks that are used to add speech and thought bubbles to the sprite are called
Looks Block. They are purple in colour.
For example, you want to add a speech bubble to the sprite for 2 seconds with a
message ‘Hello!’ as shown say Hello! for 2 seconds .
You can change the message by clicking on the message text box and typing your own
message. You can also change the time by clicking on the time text box.
think Hmm... for 2 seconds
Events Block
This is the topmost block. It helps run the script on the stage as it
controls the starting of scripts. It gives you the control of all the when clicked
blocks as without an event block no program will run.
To run the script, you have to click on the Go button before the other blocks.

