CBSE Class 6 Computer Science Introduction to Scratch Worksheet Set 01

Answer: Scratch lets users create their own stories, animations, games and music by joining colourful coding blocks, without typing code.

Teacher's Note:
1. It is a block-based visual programming language.
2. Beginners can learn logic and creativity together.

Answer: Open the Paint Editor of a sprite or backdrop, choose the Line tool and draw the shaft, then draw two short lines for the arrowhead (or use the Shape tools). Choose a colour and thickness before drawing.

Teacher's Note:
1. The Paint Editor has tools for lines, shapes and colour.
2. Click the Convert to Bitmap or Vector options as needed.

Answer: Click the required sprite in the Sprite pane below the stage. The Code area then shows that sprite's scripts.

Teacher's Note:
1. Each sprite has its own scripts, costumes and sounds.
2. The selected sprite is highlighted.

Answer: Add a new sprite with the Choose a Sprite button. Select each sprite in turn and build its own script, then run the project so all sprites act together.

Teacher's Note:
1. Each sprite has its own code.
2. Sprites can also communicate by broadcasting messages.

Answer: Pen Down makes the sprite draw a line as it moves. Pen Up stops the drawing so the sprite can move without leaving a trace.

Teacher's Note:
1. They come from the Pen extension.
2. Pen Down must be used before moving to draw.

Answer: Clear

Teacher's Note:
1. Clear removes the current drawing.
2. Undo only removes the last action.

Answer: Set pen color to (Pen category)

Teacher's Note:
1. It changes the colour of the line drawn by the sprite.
2. The colour can be selected from a palette.

Answer: size (set pen size to)

Teacher's Note:
1. A larger number gives a thicker line.
2. It is found in the Pen blocks.

Answer: Motion

Teacher's Note:
1. Motion blocks are blue.
2. Examples are move, turn and go to.

Answer: Sound

Teacher's Note:
1. Sound blocks play sounds and change volume.
2. They are pink in colour.

Answer: Size

Teacher's Note:
1. Size is shown as a percentage.
2. 100 is the normal size.

Answer: False. Scratch is aimed at beginners, especially young learners, but anyone can use it.

Teacher's Note:
1. It was designed to make coding easy to start.
2. Many adults use it too.

Answer: False. The Stage shows the project's output; the sprite pane shows thumbnails of sprites.

Teacher's Note:
1. Run the project with the green flag.
2. The Stage displays the result.

Answer: True

Teacher's Note:
1. Use the Rotate controls in the Paint Editor or the 'turn' blocks.
2. The sprite's direction can also be set.

Answer: False. A project can have many sprites.

Teacher's Note:
1. Each one can have its own scripts.
2. They can interact with each other.

Answer: True

Teacher's Note:
1. Blocks such as move 10 steps are Motion blocks.
2. They are blue.

Answer: 1. Click Choose a Sprite and add a new sprite.
2. Click each sprite in the Sprite pane to select it.
3. Drag blocks into its Code area to build its script.
4. Click the green flag to run all scripts together.

Teacher's Note:
1. Each sprite works independently once scripted.
2. You can rename sprites to avoid confusion.