Alka-Seltzer Experiment Ideas

Categories: BalloonExperiment

1.) Put Alka-Seltzer in different liquids and observe the reactions.

2.) Put Alka-Seltzer in different sealed containers (film canisters, sandwich bags, etc. and observe the reactions.

3.) Explore activity using Pop Rocks candy.

4.) Put Alka-Seltzer tablets into four different liquids (milk, orange juice, Coke, water) observe the reactions.

5.) Place Alka-Seltzer on a plate and pour a steady stream of water on it to see if it reacts any differently than dropping it into a cup of water.

6.) Does the temperature of the water make a difference in the amount of time it takes the tablet to dissolve?

7.) Will different liquids affect the time it takes to dissolve?

8.) Take three cups of water filled to the same height. Drop ½ tablet in one cup, one tablet in another cup, and 2 tablets in the third cup. How long will it take each to completely dissolve?

9.) Compare/contrast what the reactions will be then Alka-Seltzer is dropped in a glass of milk, another carbonated drink, as well as water.

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10.) Place a plant in a sealed environment. Somehow extract all air and place an Alka-Seltzer and water into the sealed environment. The CO2 released can be observed to see if it will enhance plant growth.

11.) Place Alka-Seltzer in a small bottle of water. Fit a balloon to the top of the bottle. The balloon will fill with “air.”

12.) Have children create their own rocket from construction paper. Affix rocket to a film canister. Place Alka-Seltzer in the film canister with water. Have children put the lid on the film canister, set it down, and observe “lift-off.

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13.) Place an Alka-Seltzer tablet inside of a water bottle and immediately seal the bottle so that there is no air flow going into or out of the bottle. What will happen?

14.) Compare/contrast the time it takes to dissolve in water and soda pop.

15.) * Balloon
* grind up Alka-Seltzer
* put in balloon
* add water, tie off
* watch balloon expand
Explore – Why does it expand?
What will happen over time to expand the balloon?
Explain – Gas if formed and causes balloon to expand.
Balloon will shrink over time due to gas expanding.

Cite this page

Alka-Seltzer Experiment Ideas. (2016, Sep 29). Retrieved from

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