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  • TRANSFER ALL BIO FILES AND HOMEWORK FROM OLD LAPTOP AND UPLOAD TO WIKI**

Task 4:

Procedure:



1. Start the experiment by pouring 60mL of coca cola into the first beaker.
2. Take the solid alka seltzer tablet and place it in the coke. (As soon as it is in the coke start the timer.)
3. When the timer reached 30 seconds, take the pH probe and place it in the beaker. Write down the results after 10 seconds.
4. Take the pH probe out of the beaker and replace it with the temperature probe. Write down the results after 10 seconds.
5. When all the results have been recorded for the beaker with the solid alka seltzer tablet in it, repeat the same steps but with the crushed alka seltzer tablet.
6. Record the results for the crushed alka seltzer tablet just like you did for the solid tablet.
7. Look at all the results and compare them to your hypothesis.

Task 5:
Safety Procedures:
-ALWAYS make sure your work area is clean and orderly before you start the experiment.
- Do NOT taste or smell any of the materials that have been used for the experiment.
-Always wear goggles because you don’t know what type of reaction will occur.





Biology Data Based Questions