You can switch workspaces in any one of the following ways:
In the Workspace Switcher applet, click the workspace in which you want to work.
Move the mouse pointer over the Workspace Switcher applet, and scroll the mouse wheel.
Press Ctrl+Alt+right arrow to switch to the workspace on the right of the current workspace.
Press Ctrl+Alt+left arrow to switch to the workspace on the left of the current workspace.