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docs/reference/js/lessons/snowflake-fall/challenges.md

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+# snowflake fall challenges
+
+Coding challenges for the snowflake fall tutorial. #docs
+
+## Before we get started
+
+Complete the [snowflake fall](/microbit/lessons/snowflake-fall/activity) activity and your code will look like this:
+
+```
+basic.forever(() => {
+    basic.showAnimation(`
+. . . . .
+. . # . .
+. # # # .
+. . # . .
+. . . . .
+`, 400)
+})
+```
+
+### Challenge 1
+
+### @video td/videos/snowflake-fall-1
+
+Let's begin creating our falling effect by adding another snowflake with `basic->show animation` that displays a different snowflake pattern after the first one. We need 2 frames in the new animation that display both the first and the second snowflake images.
+
+```
+basic.forever(() => {
+    basic.showAnimation(`
+. . . . . . . # . .
+. . # . . . # . # .
+. # # # . # . . . #
+. . # . . . # . # .
+. . . . . . . # . .
+`, 400) // ***
+})
+```
+
+* Run your program to see the cool animation.
+
+### Challenge 2
+
+### @video td/videos/snowflake-fall-2
+
+To finalize our snowflake fall, let's add a different snowflake pattern.
+
+```
+basic.forever(() => {
+    basic.showAnimation(`
+. . . . . . . # . . . # . # .
+. . # . . . # . # . # # . # #
+. # # # . # . . . # . . . . .
+. . # . . . # . # . # # . # #
+. . . . . . . # . . . # . # .
+`, 400) // ***
+})
+```
+
+* Run your program and see if it works.
+
+### Challenge 3
+
+Add a fourth frame to the current animation... or make it your own!
+