Migrate docs from the other repo

docs/reference/js/lessons/snowflake-fall/quiz-answer.md

@@ -0,0 +1,70 @@
+# snowflake fall quiz answers
+
+create a snowflake fall animation #animation#forever #docs
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [snowflake fall tutorial](/microbit/lessons/snowflake-fall/tutorial).
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. In reference to an animation, what is an "interval"?
+
+The number of milliseconds to pause after each image frame.
+
+## 2. Consider the following code
+
+```
+basic.showAnimation(`
+. . . . .
+. . # . .
+. # # # .
+. . # . .
+. . . . .
+`, 400)
+```
+
+What is the `interval` of the animation?
+
+400
+
+## 3. Consider the following image
+
+![](/static/mb/lessons/snowflake-fall-0.png)
+
+Write the code to create a `forever` loop that shows an animation. Change the interval from 400 to 200 to make the animation go twice as fast!
+
+```
+basic.forever(() => {
+    basic.showAnimation(`
+. . . . . . . . . .
+. . # . . . . . . .
+. # # # . . . . . .
+. . # . . . . . . .
+. . . . . . . . . .
+`, 200)
+})
+```
+
+## 4. Consider the following images
+
+![](/static/mb/lessons/snowflake-fall-1.png)
+
+![](/static/mb/lessons/snowflake-fall-2.png)
+
+Write the code to create a `forever` loop that shows an animation. Change the interval from 400 to 800 to make the animation go twice as slow!
+
+```
+basic.forever(() => {
+    basic.showAnimation(`
+. . . . . # # # # #
+. . # . . # # . # #
+. # # # . # . # . #
+. . # . . # # . # #
+. . . . . # # # # #
+`, 800)
+})
+```
+