pxt-calliope/docs/lessons/screen-wipe/quiz-answers.md
2016-03-25 16:47:20 -07:00

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# screen wipe quiz blocks answers
Clear the screen by pressing the "A" button after an animation has been played
This is the answer key for the [screen wipe quiz](/microbit/lessons/screen-wipe/quiz).
## 1. What does the function "clear screen" do on the micro:bit?
This function turns off all the LED lights on the LED screen.
## 2. Write the line of code that displays this image.
![](/static/mb/blocks/lessons/screen-wipe-4.png)
![](/static/mb/blocks/lessons/screen-wipe-5.png)
## 3. Write the condition that will detect on button A pressed
![](/static/mb/blocks/lessons/screen-wipe-6.png)
## 4. Write the code that will clear show LEDS from the screen after pressing button A
![](/static/mb/blocks/lessons/screen-wipe-7.png)