Professor O will help you learn: Citric acid and baking soda are dry until they hit the wet on your tongue — then they fizz (that same gas reaction!).
⚠️ This one you can eat, so use clean bowls and clean hands. Use food-grade citric acid. Check for allergies in any jelly powder you add, and go easy — too much citric acid can sting the tongue.
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.
Make it your own: Tweak the amounts to make it more or less fizzy.
