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How to make raisins dance
Description
Discover how the combination of vinegar and baking soda creates a chemical reaction, releasing carbon dioxide bubbles that propel raisins up and down in a glass. The experiment demonstrates the principles of buoyancy and changes in density, as the bubbles cling to the raisins and cause them to "dance" until they burst.
Original title
איך גורמים לצימוקים לרקוד? (2014-05-03)
גלו כיצד שילוב של חומץ וסודה לשתייה יוצר תגובה כימית המשחררת בועות של פחמן דו-חמצני המניעות צימוקים מעלה ומטה בכוס. הניסוי מדגים עקרונות של כוח ציפה ושינויי צפיפות, כאשר הבועות נצמדות לצימוקים וגורמות להם "לרקוד" עד שהן מתבקעות.
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