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Scratch 3.0 Class 3 Computer Worksheet
1) Answer the following questions (33)
a) What is Scratch? (3)
b) Scratch was developed by whom? (1)
c) What are the advantages of Scratch? (3)
d) What are sprites? (1)
e) What are scripts? (1)
f) How to start Scratch 3? (3)
g) What are the components of Scratch window? (5)
h) What components are there in Tab option? (3)
i) Describe the Scratch blocks. (5)
j) What is the function of Green flag in Scratch? (1)
k) How to use pen in Scratch? (5)
l) What is a program? (1)
m) What is the file extension of Scratch program? (1)
Answer
1) Answer the following questions (33)
a) What is Scratch? (3)
Answer –Scratch is a free programming language in which you can move blocks or bubbles into a set order and configure them to create interactive stories, games and animations.
This program is very easy to learn. It contains graphics and sounds. Which enables us to see the results of our work.
b) Scratch was developed by whom? (1)
Answer – Scratch was developed by Lifelong Kindergarten Group at MIT Media Lab.
c) What are the advantages of Scratch? (3)
Answer –The advantages of Scratch includes,
You do not have to remember or type any commands, everything is on the screen.
All the commands and blocks are like jigsaw puzzle pieces, so you can easily combine them.
The commands are categorised and color coded. So someone can easily find a command when they need one.
d) What are sprites? (1)
Answer –Sprites are objects or characters which makes up a Scratch program.
e) What are scripts? (1)
Answer –Scripts are the stacks of graphic blocks which helps the Sprite to do different kind of activities.
f) How to start Scratch 3? (3)
Answer – To start Scratch 3 following steps should be followed,
Scratch isn’t pre-installed on your Windows 10. First you have to download it from the internet and install it.
Then you have to click on the Start button on the bottom left of the monitor.
A menu of installed apps would appear.
Scroll down and click on the Scratch 3 icon.
g) What are the components of Scratch window? (5)
Answer – The components of Scratch window are,
Menu bar – Contains different commands such as New, Save etc.
Blocks – It is a list of 9 categories of color coded blocks.
Blocks Palette–Shows all the blocks available to you.
Script area – Hindi serial you can make your programs in scratch by assembling blocks.
Script – It is a collection of institutions.
Sprite info panel
Stage
Tabs
Green flag
Sprite
Stop button
Choose a Sprite
Choose a backdrop
Sprite list
h) What components are there in Tab option? (3)
Answer –The main components of Tab option are,
Code –Shows any script that currently exists.
Costumes – allows to create, edit or copy the image of the sprite.
Sounds – shows us the sounds of the current sprite.
i) Describe the Scratch blocks. (5)
Answer –There are two types of blocks on Scratch,
Motion blocks –motion blocks can control Sprite placement and movement. When you start scratch motion button is selected by default.
You have to click on the motion button and select from various motion blocks. You can control Sprite movement and placement by changing number.
Looks block –this blocks can you change the sprite and background appearance. Firstly we have to click on the looks button and select from the various looks blocks. Then I have to click on the next custom block.
j) What is the function of Green flag in Scratch? (1)
Answer –By using Green flag we can run the main program in Scratch.
k) How to use pen in Scratch? (5)
Answer –To use pen in Scratch the following steps should be followed,
To use the first year to enable it from extensions.
Then you have to click on add extension button on the bottom left corner.
Next choose and extension window will appear.
Now click on the pen extension.
The pen extension appears in the blocks category.
Next click the pen extension.
Next click on the pen down block.
l) What is a program? (1)
Answer – A program is a series of repeating instructions which you can Store and use them letter.
m) What is the file extension of Scratch program? (1)
Answer–Thefile extension of scratch programs is .sb3 .