Tornado in a Bottle

Professor O will help you learn: Swirling the water makes a spinning funnel (a vortex) so air can rush up as water pours down.
⚠️ Check the lid is screwed on tightly before swirling so water doesn't spray out. A low-risk activity.
Play through the project step by step, with narration read aloud.
Share this project
Steps
Tap any step to play from there — the narration plays inside the player.
You might also like

Bottle-Top Volcano
A chemical reaction: an acid (vinegar) and a base (baking soda) make carbon dioxide gas, which is the fizzy foam.

Baking-Soda Balloon
Vinegar and baking soda make carbon dioxide gas, which fills the balloon on its own.

Bubbling Cauldron Potion
Mixing bicarbonate of soda with vinegar makes a gas called carbon dioxide, and a squirt of washing-up liquid traps it in bubbles so the potion foams up and over the cauldron like a witch's brew.