May be printed and reproduced freely as long as reproduced completely, with all copyrights in place. If you'd like to see red blood cells, you'll need to learn how to do a Blood Smear. Slide, cover slip, needle, matches or lighter First sterilize the needle with a flame. Allow the needle to cool, then prick the finger of some brave soul. Dispose of the needle.
Blood can carry diseases that can be transferred from person to person.
One should always avoid coming into contact with another person's blood. If it is unavoidable, one should wear rubber gloves. Put a drop of blood toward one end of a slide. Now, without changing the tilt of the coverslip, move it back over the slide, so as to draw the blood across the slide. You do not need to add water, and you do not need a cover slip for this slide.