Blow Up a Balloon with Yeast - ScienceBob.com

11 años: Lengua extranjera
12 años: Lengua extranjera

You will need A packet of yeast (available in the grocery store) A small, clean, clear, plastic soda bottle (16 oz. or smaller) 1 teaspoon of sugar Some warm water A small balloon What to do 1. Fill the bottle up with about one inch of warm water. ( When yeast is cold or dry ?

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