> For the complete documentation index, see [llms.txt](https://science-world.gitbook.io/variable-stories-with-scract/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://science-world.gitbook.io/variable-stories-with-scract/activities/extension-challenge.md).
# Extension Challenge
**Challenge 1: Using lists in Scratch to create random stories.**
A list is a type of variable that lets you store more than one piece of information inside. In this challenge, you can create a list of nouns, a list of verbs, a list of adjectives, and any other lists and then have your code pick one at random to complete your story.
Tips for doing this:
· In **Variables** you can make a list
· You can ask for a word to add to the list by using the ask block in **Sensing** and adding **answer** to your list
o When you want to use a random word in your story there are three things you must do:
o Create a variable to use in the story
o Use a random number block from **Operators** to get a word from a random place in your list\
o Then set your story variable to be this random word
· Fill your lists when you click the green flag and tell your story when you hit space
· Can you hide your lists after you fill them?
**Challenge 2: Code a mad lib using Python coding language.**
You can write and execute python code using this free web-based editor, clicking <>**Start Coding**, and selecting python:
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Tips for doing this:
· Use [**input**](https://www.w3schools.com/python/ref_func_input.asp) to set the value of all of your variables – *watch what type of information you’re gathering: string, integer, etc. This may affect how the story is shown*
· Use the [**print**](https://www.w3schools.com/python/ref_func_print.asp) command to show your story once you’ve gathered all your information
· Can you use arrays to create random stories as above?
Python Reference Documentation:
You can watch a basic tutorial here:
