💃 DANCING RAISINS
🧪 YOUR BUBBLE DANCE LAB CHECKLIST
Science buddy, grab a grown-up before you open fizzy soda. Work on a tray in case of spills. This comic explains why raisins bob up and down like tiny performers.
- 🥤 Clear, freshly opened soda: lemon-lime or club soda with strong fizz
- 🍇 Fresh raisins: wrinkled surface helps bubbles grab on (try grapes too!)
- 🥛 Tall clear glass: so you can watch the whole dance from the side
- 🍽️ Tray or plate: catches overflow if the soda foams over the rim
- ⏱️ Timer optional: count how many trips one raisin makes in one minute
Time: about 10 minutes · Adult supervision for opening bottles · Use soda at room temperature for best bubble action
PAGE 1 OF 5 — GAS IN YOUR CUP
FIZZ PHYSICS
CARBON DIOXIDE PARTY
Soda pop is mostly water, sugar, flavor, and dissolved carbon dioxide gas. Under pressure inside the sealed bottle, CO₂ stays trapped in the liquid. Open the cap and pressure drops, so gas rushes out as bubbles. That is the hiss you hear and the fizz on your tongue. Clear soda works best here because you can see every bubble climb the glass. Flat soda has lost its gas, and flat soda means sleepy raisins that never dance.
FIZZ!
CO₂
💨 Carbon dioxide is heavier than air but still floats up through liquid.
NUCLEATION
🔬 Bubbles need a tiny bump or scratch to form, called a nucleation site.