How to Create a Form Enabled Spreadsheet in Google Docs for Use as a Survey in Google Sites

How to create a form enabled spreadsheets in Google Doc for use as a Survey in Google Site. This is a useful task if one is going to gather responses to a form or survey from a group of people. One may wish to send them the survey by email or have them fill out the survey on your Google Site. Either way their responses will be automatically saved to your spreadsheet in Google Docs.