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

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# smiley blocks quiz
Make a smiley face blink
## Name
## Directions
Use the hints in the [Smiley](/microbit/lessons/smiley/activity) activity to answer this quiz!
## 1. Describe what `show LEDs` does
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## 2. Why is there an extra empty frame after the smiley face?
![](/static/mb/lessons/smiley-0.png)
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## 3. Draw the image created with this code
![](/static/mb/blocks/lessons/smiley-3.png)
![](/static/mb/empty-microbit.png)
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## 4. Draw the images created with this code
![](/static/mb/blocks/lessons/smiley-5.png)
![](/static/mb/lessons/looper-3.png)