Ch: 7 Listen to the Loops

Contains the key definition points in the entire chapter

What is a loop?

When the same set of instructions is follow repeatedly without being stated multiple times, it is called a loop

Why are loops useful in Scratch?

Loop are useful in Scratch, as they allow us to write short, consise, easy-to-understand and remember codes

What is the use of the “Repeat” Block?

The Repeat Block repeats the actions a specified number of times, the actions below it.

What is the use of the “Forever” Block?

The Forever Block repeats the actions stated below it infinitely without stopping

What is the use of the “Repeat Until” Block?

The Repeat Until Block repeats the actions stated below it repeatedly, until the condition stated, is fulfilled

Define the “Pen Down” Block.

The “Pen Down” Block makes the sprite trace its path as it moves

Define the “Pen Up” Block

The “Pen Up” block stops the sprite tracing the path

Define the “Set Pen Colour to Block”

This block sets the shade of the pen (color brightness and saturation) according to the user's choice

Define the “Change Pen Colour By” Block

This block is used to change the colour, saturation, brightness, or transparency of the pen colour

Define the “Set Pen Size To” Block

This block sets the pen thickness to the number entered. Size 2 is twice as thick as 1 (default), size 3 is thrice, and so on

Define the “Stamp” Block

This block creates an image of the sprite at its present position

Define the “Erase All” Block.

This block erases all drawings and cleans up the stage