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Talk to the Machine

Say “Hello!”Challenge: Favorite Quote Solution: Favorite Quote Make It Do Math Quiz: Make It Do Math Challenge: Our Age in Days Solution: Our Age in Days Teach Your Code to Remember Things!Quiz: Teach Your Code to Remember Things!Challenge: About You Solution: About You Mix Words and Numbers Quiz: Mix Words and Numbers Challenge: Write a Character Introduction Solution: Write a Character Introduction Make the Machine Ask You Something Quiz: Make the Machine Ask You Something Challenge: Birthday Calculator Solution: Birthday Calculator

Make It Think

Quiz: Make Decisions

Challenge: Movie Night

Solution: Movie Night

Try Out Things Safely!

Quiz: Try Out Things Safely!

Challenge: Safe Division

Solution: Safe Division

Repeat Yourself

Quiz: Repeat Yourself

Challenge: Repeat Yourself

Solution: Repeat Yourself

Challenge: Countdown

Solution: Countdown

Break the Loop (When You Must)

Quiz: Break the Loop

Challenge: Break the Loop

Solution: Break the Loop

Challenge: Skip Even Numbers

Solution: Skip Even Numbers

Count, Collect, and Organize

Quiz: Count, Collect, and Organize

Challenge: Favorite Things

Solution: Favorite Things

Give It a Memory

Build Your Own Commands Quiz: Build Your Own Commands Challenge: Mad Lib Generator Solution: Mad Lib Generator Choose Your Own Adventure Quiz: Choose Your Own Adventure Challenge: Add Layers to Your Adventure Solution: Add Layers to Your Adventure Teach Your Code to Remember Lots of Things!Quiz: Teach Your Code to Remember Lots of Things!Challenge: Teach Your Code to Remember Lots of Things!Solution: Teach Your Code to Remember Lots of Things!Challenge: Contact book Solution: Contact book Think in Tables Quiz: Think in Tables Challenge: Class Grades Solution: Class Grades Talk to Files Quiz: Read and Write Text Files Challenge: Score Logger Solution: Score Logger

Unlock Superpowers

Build a Mini Chatbot Challenge: Custom Responses Solution: Custom Responses Track Your Spending (or Habits)Introduction to Modules and Libraries Quiz: Introduction to Modules and Libraries Challenge: Dice Roller Solution: Dice Roller Draw with Python (Turtle Power)Quiz: Draw with Python (Turtle Power)Project: Creative Design Project: Temperature Converter Project: Quote Machine Project: Interactive Adventure Story Project: Number Guessing Game (with Personality)Final Project: Personal Habit Tracker

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Solution: Countdown

Solution: Countdown

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This program counts backward from 5 to 1 and then prints “Liftoff!” — just like a rocket countdown!

for i in range(5, 0, -1):
 print(i)
print("Liftoff!")

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