Think of objects as a thing, or a noun. Examples of objects are forms and controls. Forms are the windows and dialog boxes you place on the screen; controls are the elements that you place inside a form, such as text boxes, command buttons, and list boxes.
Properties tell something about an object, such as name, color, size, location, or how it will behave. You can think of properties as adjectives that describes objects. When you refer to a property, you must first name the object, add a period, and then name the property. For example, refer to caption property of form called Form1 as Form1.Caption (say Form1.Caption).