Questions:
1 What is the Full Screen mode?
2 Name two ways to fit your image to the screen.
3 What happens in the Essentials workspace when you exit one panel and select another?
4 How do you save a workspace?
5 Can you delete a workspace?
Answers:
1 The Full Screen mode displays a document window on a black background and hides interface elements from view.
2 You can fit your image to the screen by using the view menu, or by double clicking the Hand tool, right clicking while you have the zoom or Hand tool selected, or by pressing Ctrl+0 (zero) (windows) or Command +0.
3 When you leave one panel to select another, the panel returns to its original location in the docking area.
4 You can save your own workspace by clicking on the double arrows in the application bar and choosing New workspace. 
5 Yes, you can delete a workspace by clicking on the double arrows in the Application bar and choosing Delete Workspace. Note that you cannot delete any of the default workspaces.