Here's how to undo the damage caused by tooth decay:
What do you think, is shelf fungus the tree's friend or foe?
You go to the library and check out an old book. When opening the book, you notice the pages are yellow and falling apart. Why is this happening?
How does cellulose turn into paper? What chemistry is occurring?
Why is it so difficult to tear paper in an even, straight line?
Paper is an indispensable part of modern life. In fact, each American uses about 600 pounds of paper every year. Where does all this paper come from?