This would depend on the type of slide and type of microscope; however, typically you turn on your light source (either electric or sometimes a mirror to reflect the ambient light), switch your...
Light microscopes commonly need oil for two reasons. The first is that a dab of oil will keep a specimen still on the slide holding it in place and allowing for easier manipulation. The second is...
Your whole unicellular body cannot fit under a microscope. IT is impossible to shrink yourself and get under but you can view yourself by getting some of your cells and placing on.