1Two things to know first
Fizz is a bumping game
You need two small ideas. Watch each one happen:
Touching makes bubbles
The tablet only fizzes where it touches the water. Each touch makes a tiny bubble of gas pop free.
Warm = busier water
In warm water the tiny bits zoom around and bump the tablet way more often. Cold water bits move slow.
2Two glasses, same tablet
More bumps means more bubbles
Cold glass 🧊
The water bits crawl. They bump the tablet only now and then, so a bubble pops free every so often.
Warm glass ☕
The water bits race. They slam into the tablet far more often — so… keep this in mind for your guess.
3Turn the heat knob
Watch one glass speed up
Here's one glass with one tablet. Slide the water from icy to hot and watch how fast the bumps turn into bubbles.
Hotter water = faster bumps = bubbles stream out quicker. The tablet shrinks faster too.
4Now race them
Cold glass vs warm glass 🏁
Two glasses side by side, same tablet dropped at the same moment — one filled with cold water, one with warm. Predict the winner first, then watch the race.
Guess before you race
Same fizzing tablet, two glasses. Which one finishes fizzing first?