Reflection: Lesson Planning Surface Area Lab - Section 3: Student Activity (Lab)

 

This lab compares the surface area between a whole in contrast to a crushed Alka Seltzer tablet and water. Using this same set-up you could easily test how temperature affects reaction rates. Time one whole tablet immersed in cold water and another tablet in hot water.

I typically use cooking as my example of temperature improving reaction rates, but never formally test this with students. This lab could easily be modified to test for temperature differences.

  Alternate use of this lab
  Lesson Planning: Alternate use of this lab
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Surface Area Lab

Unit 5: Chemical Reactions
Lesson 7 of 11

Objective: Students will be able to compare the surface area of a whole in contrast to a crushed Alka Seltzer tablet as it reacts with water.

Big Idea: Students crush an Alka Seltzer tablet to compare reaction speeds.

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  90 minutes
surface area lab
 
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