pxt-calliope/olddocs/lessons/snowflake-fall/quiz-answers.md

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# snowflake fall blocks quiz answers
Create a snowflake fall animation.
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This is the answer key for the [snowflake fall quiz](/lessons/snowflake-fall/quiz).
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## 1. What is a forever loop?
Run code in the background forever (answers may vary).
## 2. Draw the picture that will be produced with this code
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```blocks
basic.forever(() => {
basic.showLeds(`
. # . # .
# # # # #
# # # # #
. # # # .
. . # . .`);
});
```
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![](/static/mb/lessons/flashing-heart-0.png)
## 3.Write the code for a forever loop and show LEDS for these images!
![](/static/mb/lessons/snowflake-fall-0.png)
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```blocks
basic.forever(() => {
basic.showLeds(`
. . . . .
. . # . .
. # # # .
. . # . .
. . . . .
`);
basic.showLeds(`
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
`)
});
```
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## 4. Write the code for a forever loop and show LEDS for these images!
![](/static/mb/lessons/snowflake-fall-1.png)
![](/static/mb/lessons/snowflake-fall-2.png)
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```blocks
basic.forever(() => {
basic.showLeds(`
. . . . .
. . # . .
. # # # .
. . # . .
. . . . .
`);
basic.showLeds(`
# # # # #
# # . # #
# . # . #
# # . # #
# # # # #
`)
});
```