Tannin is a yellow compound that occurs in parts of many plants, such as the bark of trees, oak galls, walnuts and even tea leaves and coffee beans. Tannin is used in tanning animal skins and hides to make leather. The skins are first soaked in water and treated with lime then treated with the tannin. This process prevents the skins from rotting.

your assignment

This worksheet comes from the linked workbook and has this assignment and lots of other fun science worksheets related to the science names projects.




©2000 Teaching Treasures™ Publications