We've put a fun twist on the traditional blowing up a balloon with alka seltzer today by blowing up a balloon with a heart drawn on it. (science-sparks.com)
Add more alka seltzer bit by bit to keep the bubbles rising and falling. (science-sparks.com)
For example, is taking alka seltzer plus while breastfeeding harmful or not. (momdiscuss.com)