Directions: Place a + in the space at the left of each true statement. Place a 0 at the left of each false statement. Rewrite each false statement so that it is true.

1		A rheostat is a device that controls the size of the magnification of an objective.
2		A microscope specimen consists of a part or product of the human body or a microbe. A specimen is examined microscopically in order to learn about the health of the whole body.
3		The oil-immersion objective has a very high power of magnification and therefore requires oil to produce a clear image of the specimen.
4		The working distance is the distance between the oculars and the specimen.
5		Lab personnel using the microscope must learn to recognize complicated patterns of blood-cell structures, urine-sediment composition, and microorganisms.
6		Most microscopes require very little maintenance except for routine care and a yearly inspection by a professional microscope technician.
7		In the term 40X, the X means times or magnification.
8		A mechanical stage is attached to the platform stage.
9		Resolution refers to the fact that when objectives are changed, the object in the center of the magnified field should remain centered in the field of view.
10		Located in the condenser, the rheostat controls the amount of light entering through the aperture in the stage.
11		The higher the magnification, the more light is required for viewing a specimen.
12		The higher the magnification, the longer the working distance.
13		With a mechanical stage, you can control much more easily the direction of the slide movement.
14		When moving from the 40X objective to the oil-immersion objective, you should remove your eyes from the oculars and look from the side at the microscope objectives.
15		On a mechanical stage, the range of motion between the x axis and the y axis permits movement in four directions.
16		If you lose your focus on a higher-powered objective, you must return to the 10X objective and start the focusing process from the beginning.