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Dissolving tablets more quicklyFeatured science projectScience project video

Observation

The results show that as the temperature of the solution increases, the Alka-Seltzer tablet dissolves more quickly. The tablet also dissolves more quickly in acidic solutions, compared to water.

Substance

Time for Alka-Seltzer tablet to dissolve (seconds)

15°C

25°C

35°C

45°C

Water

51

38

29

22

Hydrochloric acid

46

34

25

19

The chart below represents our experiment results.

Dissolving tablets science fair project

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Complexity level:
7
Project cost ($):
10
Time required:
1 hour to prepare, 2 hours for the science project experiment
Material availability:
May be purchased at a chemist
Safety concerns:

Basic safety requirements