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Project title Dissolving tablets more quicklyFeatured science projectScience project video
Difficulty Level Middle school
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This science fair project was performed to find out what conditions will make tablets dissolve faster. The experiment involved using Alka-Seltzer antacid tablets, water and hydrochloric acid at different temperatures. 

Instructions preview
1. For this science project, the independent variable is whether water or hydrochloric acid is used as the solution, and the temperature of the solution. The dependent variable is the time taken by the Alka-Seltzer tablet to fully dissolve in the solution. This is determined using a stopwatch. The constants (control variables) are the amount of water used, the size of the tablet and the air pressure in the room. 2. The first beaker is filled with 200ml of ice water. Water and ice cubes are added to bring the temperature to 15°C, and the volume of the water .....
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