Materials. 1  DriMark Counterfeit Detector Pen with adhesive holder! (It was cheaper than purchasing 3 to a package.) Patent number 5,063,163 is proudly printed on the bottom of the package. 2  Dollar bills. I used four singles instead of twenties, fifties or hundreds for two reasons. 3  Starch.
All living beings are made up of cells. Some of them are made up of only one cell and others have many cells. The average adult human body has around 37.2 trillion cells. WOW, that's a lot of cells. So many, in fact, that it's hard to picture.
There are almost 120 known elements. For example, you are made up of billions of billions of atoms but you probably won't find more than 40 elements (types of atoms) in your body. Chemists have learned that over 95% of your body is made up of hydrogen (H), carbon (C), nitrogen, oxygen, phosphorus (P), and calcium (Ca).