Scratch Lists Challenges

🎮 Activity Time!

Time needed: 30-45 minutes

What you'll do:

Get ready for some awesome coding challenges! Today, you'll become a list master in Scratch by creating:

• 📚 A book collection system
• 🍕 A food ordering app
• 🔤 A name analyzer
• 🧠 A quiz game

Before You Start:

✅ You've completed the Lists lesson
✅ You have Scratch open and ready
✅ You're ready to create 4 different projects
✅ You remember how to use lists in Scratch

💡 Pro Tip!

Create a new Scratch file for each challenge and give it a meaningful name like "Book Collection Challenge" or "Food Order System". This helps you stay organized!

Challenge One: Book Collection 📚

Your Mission:

Create a friendly librarian sprite that collects book recommendations from visitors!

Step-by-Step Instructions:

One. Pick your characters:

• Choose a main sprite (your librarian)
• Choose a visitor sprite (someone visiting the library)
• Select a cool background (maybe a library or bookstore!)

2. Create your list:

• Make a new list called "Book"

3. Program your main sprite when the green flag is clicked:

Step 3a: Clear the list

• Delete all items from the Book list (start fresh!)

Step 3b: Say hello!

• Make your librarian greet the visitor with a speech bubble
• Example: "Hello! What are your favorite books?"

Step 3c: Collect book titles

• Ask for 3 favorite books
• Add each book to your list

💡 Smart Coding!

Use a repeat loop to ask 3 times instead of writing the same code 3 times. Work smarter, not harder!

Blocks You'll Need:

repeat (3)
ask [What's a book you love?] and wait
answer
add [answer] to [Book v]
delete all of [Book v]

🏆 Challenge Yourself!

Want to make it even cooler? Try these:

• Make the visitor walk towards the librarian at the start
• Add a "Thank you!" message after collecting all books
• Make the visitor walk away at the end
• Show the complete book list in a speech bubble!

Challenge 2: Food Ordering System 🍕

Your Mission:

Build a restaurant ordering system where customers can pick their favorite food and drink!

Step-by-Step Instructions:

One. Set up your restaurant:

• Choose a sprite to be your waiter/waitress
• Pick a restaurant background

2. Create your lists:

• Make a "Food" list
• Make a "Drink" list
• Make a "Meal Order" list

3. When the green flag is clicked:

Step 3a: Clear all lists (fresh start!)

Step 3b: Stock your menu:

• Add 3 foods to the Food list (like "Pizza", "Burger", "Pasta")
• Add 3 drinks to the Drink list (like "Juice", "Water", "Soda")

Step 3c: Start taking orders!

4. Taking the order:

Step 4a: Greet your customer

• "Welcome! What would you like to eat today?"

Step 4b: Take food order

• Show the Food list
• Ask which food they want
• Move their choice from Food list to Meal Order list

Step 4c: Take drink order

• Show the Drink list
• Ask which drink they want
• Move their choice from Drink list to Meal Order list

Step 4d: Confirm the order

• Say: "You ordered [food] and [drink]!"

💡 Clever Coding!

Use the "join" block to combine text like: join("You ordered ") join(item 1 of Meal Order) join(" and ") join(item 2 of Meal Order)

Blocks You'll Need:

ask [What food would you like?] and wait
answer
delete all of [Food v]
add [Pizza] to [Food v]
item # of [Pizza] in [Food v]
join [You ordered ] [answer]
item (1) of [Meal Order v]

🏆 Challenge Yourself!

• Add prices to your items
• Calculate the total cost
• Add a "Thank you for ordering!" message
• Make the sprite do a happy dance after taking the order!

Challenge 3: Name Analysis 🔤

Your Mission:

Create a name analyzer that tells cool facts about your name using lists!

Step-by-Step Instructions:

One. Set up your project:

• Choose your favorite sprite
• Pick a fun background

2. Create your name list:

• Make a list called "Name"
• Add each letter of your name as a separate item
• Example: If your name is "ALEX", add: A, L, E, X

3. When the green flag is clicked, make your sprite:

Step 3a: Count the letters

• Say: "Your name has [number] letters!"
• Use the length of list block

Step 3b: Find the first letter

• Say: "Your name starts with [letter]!"
• Use item 1 of Name

Step 3c: Find the last letter

• Say: "Your name ends with [letter]!"
• Use item (last) of Name

💡 Fun Fact!

You can use "item (last) of [Name v]" to always get the last letter, no matter how long the name is!

Blocks You'll Need:

join [Your name has ] [5]
length of [Name v]
item (1) of [Name v]
item (last) of [Name v]

🏆 Challenge Yourself!

Make it super cool with these extras:

• Add background music that plays while analyzing
• Make your sprite change costumes between each fact
• Count how many vowels (A, E, I, O, U) are in your name
• Find the middle letter of your name
• Make the sprite spell out your name letter by letter!

Challenge 4: Quiz System 🧠

Your Mission:

Build an awesome quiz game that asks questions and checks answers!

Step-by-Step Instructions:

One. Set up your quiz show:

• Choose a quiz host sprite
• Pick an exciting background (maybe a game show stage!)

2. Create your variable:

• Make a variable called "Question Number"
• This tracks which question you're on

3. Create your lists:

• Make a "Questions" list
• Make an "Answers" list
• Add at least 3 questions and their matching answers

Example:

• Questions: "2+3", "5x2", "10-4"
• Answers: "5", "10", "6"

4. When the green flag is clicked:

Step 4a: Set up the quiz

• Show the Question Number variable
• Set Question Number to 1

Step 4b: Ask all questions

• Use a repeat loop (repeat for length of Questions list)
• Inside the loop:
  • Ask the question from your list
  • Check if the answer is correct
  • If correct: "Great job! That's right!"
  • If wrong: "Oops! Try again next time!"
  • Add 1 to Question Number

Step 4c: End the quiz

• Hide the Question Number variable
• Say "Quiz complete! Great work!"

💡 Quiz Master Tip!

Make sure your Questions and Answers match up! The first question should match the first answer, and so on.

Blocks You'll Need:

ask [What is 2+3?] and wait
answer
item (Question Number) of [Questions v]
length of [Questions v]
(answer) = (item (Question Number) of [Answers v])

🏆 Challenge Yourself!

Level up your quiz with:

• Add a Score variable to track correct answers
• Play a sound effect for correct/wrong answers
• Add different difficulty levels
• Create categories for your questions
• Show the final score with a celebration animation!

🎯 Submission Time!

Wow! You've completed all 4 list challenges! You're now a Scratch Lists expert! 🌟

Submit Your Work:

Submit your Scratch links here

💡 Before You Submit

Double-check that:

• All 4 challenges work when you click the green flag
• Your lists are working correctly
• You've saved and shared your projects on Scratch
• You've named each project clearly

Great job, coder!

You've learned how to use lists to store information, create interactive programs, and build amazing projects. Keep exploring and creating awesome things with Scratch! 🚀