A Wonderleaf question
Why does soda fizz?
a real page from the book
Soda fizzes because carbon dioxide gas has been squeezed into the drink while the can or bottle is sealed. When you open it, the pressure falls, and the gas can leave the liquid as bubbles. Less pressure means more fizz rushing upward.
Bubbles often begin on tiny rough places, such as a scratch, a dust speck, or the edge of an ice cube. Once one bubble starts, more gas joins it, it rises, and it pops at the top with that sharp sound kids lean close to hear.
Wonder words
- carbon
- pressure
- bubbles
- dissolve
Try it out
Pour soda into two glasses, one with ice and one without, and compare where bubbles appear first.
Read the whole picture book
Watercolour scenes, straight answers, about three minutes cover to cover.
Open the picture bookKeep wondering
- Who invented pizza?
- How is chocolate made?
- How did people keep food fresh before refrigerators?
- Why do fruits taste sweeter when they are ripe?
- Why do we cook food?
- How does food turn into energy?
One more wonder: Why is space so dark?
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