Materials needed:
- 12 Alka-Seltzer tablets
- paper or something to crush tablet inside of
- Hammer/rock or other object to crush the tablet
- Thermometer.
- Clear drinking glass filled up to 250ml
- Measuring cup
- Masking tape
- Something to stir with
- Tap water
- Stop watch
- A helper
- notebook to record results
- knife to cut the tablets into the smaller pieces