Forum:Spell or Magic

Hi every one, it's my question: Is the same magic card and spell card? When a card that destroys spell cards, as Malevolent Catastrophe, magic cards are destroyed? Or they are nor the same as spell cards so they remain?
 * Oh, and about Malevolent Catastrophe, it destroys all spell and trap cards on the field, doesn't it? Because it doesn't explain that point.