Warm-up Sept 8 th Can you identify the picture you received when you entered the room? Give it a try!!

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Presentation transcript:

Warm-up Sept 8 th Can you identify the picture you received when you entered the room? Give it a try!!

1.Body tube – holds nosepiece at one end and eyepiece at the other end; conducts light rays 2.Revolving nosepiece – holds objectives 3.Scanning power objective – shortest lens used to scan whole slide 4.Low-power objective – longer than scanning lens and used to see more detail 5.High-power objective – longest lens used to see great detail

6.Stage clips – holds slides in place on stage 7.Diaphragm – controls amount of illumination used to view the object 8.Light source – bulb or mirror 9.Ocular lens (eyepiece) what you look through 10. Arm – supports upper parts and provides a carrying handle 11. Stage – holds and supports microscope slides 12. Coarse adjustment knob – used to bring object into approximate focus

13.Fine-adjustment knob – used to bring object into final focus 14. Base – flat surface that rests on the table

Microscope Rules 1. Always carry the microscope with 2 hands. 2. Focus down very slowly when using high power! 3. Don’t let the stage get wet! 4. Look at the whole area under the coverslip. 5. Use only lens paper to clean the lenses. 6. Keep the microscope about 2 inches from the edge of the desk. 7. Make sure scanner power faces down when finished using the microscope.

Total Magnification - How many times bigger an object appears than it’s actual size. T.M. = POWER OF EYEPIECE X POWER OF OBJECTIVE SCANNER POWER = 10 X 4 = 40 X LOW POWER = 10 X 10 = 100X HIGH POWER = 10 X 40 = 400X OIL IMMERSION = 10 X 100 = 1OOOX