Fizzy Sherbet Sweets

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.
📖 Featured in: Kitchen science experiments with cupboard ingredients · Screen-free things to do when they say "I'm bored"
You might also like

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

Mummified Apple Experiment
Children test how the ancient Egyptians preserved mummies by burying apple slices in salt and bicarbonate of soda for a week. The salts draw water out of the apple, and without water the things that cause rot cannot grow. It is a real fair test with measuring and recording.

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.