Monday, April 26, 2010

Calcium Reactions

Materials:
  • Water
  • Styrofoam cups
  • Tums tablets
  • Non-hydrogenated lime stones



1. Place Tums tablet in water. (I tried the Tums in cold and hot water. There wasn't much difference in how long it took for the tablets to dissolve.)


2. This is how it looked after the tablet dissolved completely. (It took about an hour for the tablet to dissolve completely.)



3. Place some non-hydrogenated lime in water. (It began to bubble immediately. The more stones that were added, the more it bubbled up.)






4. After the lime dissoved completely it turned back into a solid, and evaporated all the water.

2 comments:

  1. Great idea! I've always wondered how calcium forms in water pipes. Kids will love to see the transformation. Good job!

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  2. Very interesting experiment. I like your pictures. I think students would enjoy seeing this activity.

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