Alka+tablet

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Title
Alka Seltzer Tablet

Broad Question
How does the temperature of water affect the time an Alka seltzer tablet dissolves?

Specific Question
Does the temperature of water affect the time it takes Alka seltzer tablets to dissolve?

Hypothesis
It is hypothesized that the temperature of water will affect the time an Alka Seltzer tablet will dissolve.The warm water will melt the tablet and the cold water, won’t freeze the tablet but make it cold enough to dissolve slowly.

Graph of Hypothesis


Independent Variable:

Dependent Variable:

Variable Items to be Controlled
-Same size beakers -Same amount of water in each beaker -Same Alka Seltzer tablet

Safety Or Environmental Concerns
**Experimental Design** (add the correct headings from the experimental design page before beginning)

Resources and Budget Table

 * Item || Number needed || <span style="color: #000000; font-family: Arial,Helvetica,sans-serif;">Where I will get this || <span style="color: #000000; font-family: Arial,Helvetica,sans-serif;">Cost ||
 * Stopwatch || 1 || JBES || $0 ||
 * Alka Seltzer tablets || 15 || Walmart || $4.99 ||
 * Thermometer || 1 || JBES || $0 ||
 * Beakers || 3 || JBES || $0 ||
 * Stirring tools || 2 || JBES || $0 ||

<span style="color: #000000; font-family: Arial,Helvetica,sans-serif;">Detailed Procedure
<span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;"> 1. Gather together all materials <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;"> Stopwatch <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;"> Alka Seltzer tablets <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">Hot plate <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">2. Start with coldest water (5), and drop first tablet in <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">Start the stopwatch when first tablet is dropped in <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;"> 3. Stop the clock after the tablet is dissolved <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">Record the time <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">4. Repeat steps 3 and 4, four more times <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;"> 5. Start 20 degree water <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;"> Start the stopwatch when first tablet is dropped in <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">6. Stop the clock after the tablet is dissolved <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;"> Record the time <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">7. Repeat steps 6 and 7 four more times <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">8. Start 35 degree water <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">Start the stopwatch when first tablet is dropped in <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">9. If there is enough tablets try a 50 degree water <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">Start the stopwatch when first tablet is dropped in <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">10. I did a mini experiment just to see what it will look like <span style="background-color: #ffffff; color: #000000; font-family: Arial; font-size: 16px; text-decoration: none; vertical-align: baseline;">11. I got time it takes for each degree of water to dissolve. (estimated)

<span style="color: #000000; font-family: Arial,Helvetica,sans-serif;">Data Table
==<span style="color: #000000; font-family: Arial,Helvetica,sans-serif;">  ==

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 1.3em; line-height: 1.5;">**Photos** <span style="color: #000000; font-family: Arial,Helvetica,sans-serif;">

<span style="color: #000000; font-family: Arial,Helvetica,sans-serif; font-size: 36px;">Results
== The experiment was designed to test the effect of different water temperatures on the time it took the Alka Seltzer tablets to dissolve. The average for the 5 degree water is 119. The average for the 20 degree water is 38. The average for the 35 degree water is 26. The results showed that the warmer the water temperature the shorter the dissolving time. ==

Conclusion
== The experiment was designed to test the effect of different water temperatures on the time it took the Alka Seltzer tablets to dissolve. The average for the 5 degree water is 119. The average for the 20 degree water is 38. The average for the 35 degree water is 26. The results showed that the warmer the water temperature the shorter the dissolving time. ==

Discussion
== Does the temperature of water affect the time an Alka Seltzer tablet will dissolve? This experiment was set up to see how water temperature affects the dissolving time of an Alka-Seltzer tablet. The results of the experiment did answer the question. Overall, the warmer the temperature of the water, the faster the Alka-Seltzer dissolved, and the colder the water the longer it took the tablet to dissolve. == == The results of the experiment backed up the hypothesis. The average time it took the tablet to dissolve in the 5 degree water was 119 seconds. The average time it took the tablet to dissolve in the 20 degree water was 38. The average time it took the tablet to dissolve in the 35 degree had an average of 26 seconds. == == There was no pattern noticed in this experiment but there was a strong side and a weak side. The strong side was the warmest water and the weak side was the cold water. The results happened because of the warm water and cold water. The tablet in the warm water dissolved faster because the temperature of the water melted the tablet. The cold water was slower because the water didn't freeze the tablet, but the water was cold enough to take a while for the tablet to dissolve. ==

Research
== In hot water the molecules move around more quickly. This means that when they bombard the alka seltzer tablet, they do so more quickly and with more force. This has the effect of dissolving the tablet more quickly. ==

Abstract
The purpose of the experiment is to figure out whether warm water or cold water is faster when dissolving an Alka Seltzer tablet and it is hypothesized that the temperature of water will affect the time an Alka seltzer tablet will dissolve. The experiment was done by dropping an Alka Seltzer tablet into different temperatures of water. Then each temperature of water was timed when the tablet was dissolving. The results showed that the warmer water had a faster dissolving time. So the answer was yes, the temperature of water does affect the time an Alka seltzer tablet will dissolve.

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