Page 104 - Viva ICSE Computer Studies 5 : E-book

Control Block

This block helps to avoid repetition of steps, time to pause and
action. There are following actions.

• Moving the Sprite by pressing a key

• Executing a block over and over again using Forever Block

• Executing a block a specifi ed number of times using Repeat
Block

• Executing wait a specifi ed number of
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seconds using Wait Block
First plan the activity step-by-step and
• Executing a click on Green Flag using
then convert it to a computer program
Clicked Block
using the limited instructions.

Executing a Conditional Statement

In programming, a condition is something that must be true in order for
something to happen. A condition is thus said to ‘evaluate to true’ or ‘evaluate

to false’. In Scratch, any block whose label says ‘if,’ ‘when,’ or ‘until’ is a sort of
conditional construct.

Saving a Project

Follow these steps to save a project.

1. Click on the File menu
2. Select the Save option. The ‘Save Project’ dialog box will appear.

Step 2
Step 1

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