A tornado is a fast-spinning tube of air that reaches from a storm cloud all the way down to the ground.
Singapore almost never gets tornadoes — but they happen in places like the United States. Today you'll be a weather detective and discover the secret recipe that makes one spin to life!
Tap Next when you're ready to mix the storm ingredients.
Just like a cake needs eggs and flour, a tornado needs special "ingredients" in the sky. Tap each card to discover one!
Reveal all 4 ingredients to fill the recipe bowl.
The sun heats the ground. The ground heats the air. Warm air is lighter than cool air, so it floats upward — fast!
Press the button to watch the warm air climb.
Tornadoes form in stages. Tap the stages in the right order, from first to last.
Which one happens first?
High up, the wind blows fast in one direction. Lower down, it blows slower. This difference makes a tube of air roll over — like a rolling pin!
Drag the slider to set how different the two winds are.
Slide it up high to get the air spinning fast!
The spinning tube tilts upright inside the storm. It stretches downward, getting thinner and faster — until it touches the ground. Now it's a real tornado!
Tap to make the funnel grow down, one step at a time.
A weather report says: warm wet air, a tall thunderstorm, and winds blowing at very different speeds. Is a tornado likely?
Think about the ingredients you collected.
Here's the whole recipe you discovered:
You learned how warm air, big storms, and twisty winds work together. Brilliant detective work, weather scientist! 🌟