PROCEDURE Part #2: Object Sort Now that you are more familiar with the powers of ten, arrange the following items from LARGEST to SMALLEST.

1. Width of human hair
2. Wavelength of microwaves
3. Thickness of a dollar bill
4. Period at the end of this sentence
5. Diameter of red blood cells
6. Radius of a hydrogen atom
7. Diameter of a proton
8. Wavelength of a gamma ray
9. Diameter of the nucleus of a gold atom
10. Diameter of a neutron
11. Size of a typical virus
12. Diameter of the DNA Helix
13. Length of a grain of sand
14. Diameter of the smallest bacteria
15. Diameter of average cell in the human body
16. Size of a small ant