Make text superscript or subscript

http://office.microsoft.com/en-us/word/HP051894551033.aspx
1. Select the text that you want to format as superscript (superscript: Describes text that is slightly higher than other text on a line, such as a footnote reference mark.) or subscript (subscript: Describes text that is slightly lower than other text on a line. Subscripts are often used in scientific formulas.).
2. On the Format menu, click Font, and then click the Font tab.
3. Select the Superscript or Subscript check box.

Keyboard shortcuts

* Superscript: Press CTRL+SHIFT+=
* Subscript: Press CTRL+