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Blocks Functions
Checks whether the sprite is touching the mouse pointer, the
touching mouse-pointer ? edge, or another sprite. If yes, the block returns true; if it is not, it
returns false. It is used with an if-then block.
Checks whether the sprite is touching a specified colour. If it is, the
touching color ?
block returns true. It is used with an if-then block.
Makes an input box (with the specified text above it) and displays
ask What’s your name? and wait it at the bottom of the screen. The user can then enter text into it
and submit it. The input is stored in an Answer block after that.
answer Holds the most recent text entered with the Ask () and Wait block.
Checks if the specified key is pressed. If the key is being pressed,
key space pressed?
the block returns true; if it is not, it returns false.
Role of Video Sensing extension in Scratch
Using the Sensing Menu when clicked
Now use the Sensing menu for Ask the user for age, User
types in age, Display the stored answer. set age to 0
ask What’s your age? and wait
Now, create a variable named age.
set age to answer
After creating the variable age, let us create the following
block stack for the sprite: Now, click on the green flag. say Join I Know your age is answer
Cat displays the message “What’s your age?”
We can enter our age here
(Here, we have entered the
age 12) and click on the
Tick button.
Blocks in Scratch 85

