Acidity — cards for kids
12 cards: a picture, a short story and audio
Kefir Turns Sour by Itself
Milk becomes kefir because tiny living things called bacteria get into it. They eat the sugar from the milk and make acid, like little factories. That is why kefir tastes sour, and if you leave it in a warm place, it gets even sourer, because the bacteria work faster.
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Kefir Turns Sour by Itself
The Stomach, an Acid Pool
Ants, the Acid Sprayers
The Rose Turns Blue From a Base
Paint Isn't Afraid of Acid
Tea Changes Color With Lemon
The Battery, a Sour Store
Acid Rain Eats Stone
Baking Soda Fizzes and Calms It
Sour Means Acidic
Soil Can Be Sour
Red Cabbage, the Chameleon
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