I tried copying the iframe code to the page but the form does not display. Instead a box is down that does not contain the form:What is the right way to embed?
How to embed a Google Docs form in a Google Sites page?
google drive;google apps;google sites
Inserting Google Docs, Spreadsheets, Presentations, and FormsYou can embed Google Documents, Spreadsheets, Presentations, and Forms  into your Google Site in two simple steps:Click the  Edit page button to open the site editor.Place the cursor where you would like to insert the object.From the Insert menu, select the object you wish to insert.Note: The inserted object will be view-only to the public. However,  when the contents of the objects are updated at its source and  published, it is updated automatically within your site.Anyone with collaborator access to your site will be able to view a  link under each embedded object that will allow them to pop out an  editable version of the object.Taken from this Google Help Article