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Let’s learn it with the help of activities. (See activity 6.1 and 6.2)

Activity 6.1

Add a sprite (any bird) in your project and fly it with spreading its wings

continuously until space key is pressed. Means when space key is pressed then
the sprite stops flying.

Answers

Step 1: Add a sprite “bat” (from “animals” tab) in
scratch.
Step 2: Choose the sprite “bat” and drag the “when flag

clicked” block from the “Events” blocks in the
script area. Now, do the coding in the “forever”
block for flying as well as changing its costume
(for spreading the wings) continuously (shown
in Fig. 6.1).

Step 3: Now, drag “When space key is pressed” block
in script area and then drag “stop all” block
inside it. (shown in Fig. 6.1).

Fig. 6.1

Activity 6.2

Add a sprite to your project. When the “right” arrow key
is pressed, move the sprite 10 steps forward. When the

“left” arrow key is pressed, move it 10 steps backward.
Pressing the “down” arrow key will turn the sprite 30
degrees to the right, while pressing the “up” arrow key will
turn it 30 degrees to the left. Finally, pressing the “space”
key will move the sprite 20 steps forward.

Fig. 6.2

Scratch 59