← Lessons CREATOR PATH

🌋 Choose Your Path

Lesson 12 of 20
🌋
Themed Universe
Volcano Island
Code makes decisions — if lava is hot, the volcano erupts! 🌋
🎯 Missions
Make 3 different eruption predictions today!
Trigger the DANGER warning at least once!
Solve all 4 volcano puzzles — no hints!
● ● ● volcano.js JavaScript
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      observation deck
      LIVE
    

    

      
Click ▶ Run to see your volcano's reaction…

    

  








  

    

      
🌋 Volcano Puzzle Step 1 of 4

      
The volcano's temperature is 120. If it's above 100, print "ERUPT!".

    

  

  

    
    
    
    
    
  

  

    💡 Hint: Type: if (temp > 100) { console.log("ERUPT!"); }
  







  

    
🌋 Choose Your Path

    
In Lesson 10 you stored values in var variables. In Lesson 11 you did math with + - * / %. Today on 🌋 Volcano Island, your code learns its most powerful trick: making decisions with if and else! Hot lava? ERUPT! Cool rock? Stay safe. The choice is yours — and your code's.

    

      
⚡ Comparison Operators

      
>greater than100 > 50 → true

      
<less than30 < 80 → true

      
>=at least100 >= 100 → true

      
<=at most50 <= 50 → true

      
===exactly equal"FIRE" === "FIRE" → true

      
!==not equal5 !== 10 → true

    

    

      

        ❓
        if tests a question: if (temp > 100) { ... }
      

      

        🔀
        If the answer is true, the code inside { } runs
      

      

        🚫
        else is the backup plan — runs when the test is false
      

      

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        Click ▶ Run to test, then ✓ Check to verify!