Finally, students will watch a demonstration of an effervescent tablet, such as Alka-Seltzer, which fizzes when it dissolves in water. The reaction that causes this fizzing is similar to the reaction ...

This 1971 Alka-Seltzer ad was one of the first created ... The “secret” was Calgon, a water softening powder that allegedly helped get laundry 30 percent whiter when added to your regular ...

Powdered Tablet: Using the same piece of folded paper, place an Alka-Seltzer tablet inside the pages near the crease. Use the bottom of the measuring cup to press and crush the tablet into a fine ...