By Aeiffert, 5/1/2018

0
3 views

Pretty Polished Pennies


Pretty Polished Pennies

Materials

Procedure

  1. Out of your pennies, try to find the dirtiest one.

  2. Take a small piece of paper towel and dampen it slightly with water.

  3. With as much effort as you can, try for about 30 seconds to polish the penny with the paper towel. Is anything happening?

  4. Now, take the pencil's eraser and try to "erase" the patina covering the penny. What's happening now, and why?

Analysis and Conclusion

Hmm... it seems nobody's added a conclusion for this experiment yet. You can suggest one here.

Advertisement

Comments


You have to be logged in to post comments
.

The daily "did you know?"

A cat's tail contains anywhere from nineteen to twenty-three bones––about ten percent of all of the bones in its body.