Materials List: Fuel Mystery Dis-Solved!

Each group needs:

  • 3 solid halves and 3 crushed halves of antacid tablets, such as Alka-Seltzer™; do NOT use Tums™ tablets
  • 1 clear plastic cup
  • 1 stopwatch or clock with a second hand
  • vinegar, enough to fill the clear plastic cup
  • Fuel Analysis Worksheet, one per student; choose from two versions: for grades 2-3, for grades 4-5
  • safety glasses/goggles, one pair per student

To share with the entire class:

  • access to a sink to get and dispose of tap water

For a class demonstration:

  • 1 tablespoon baking soda
  • ¼ cup vinegar
  • 1 clear cup or bowl