Microscope Function Magnifies up to… ______________ microscope Uses light. __________

1. Microscope Function Magnifies up to… ______________ microscope Uses light. __________ ______________ microscope Light cannot pass. _________ ______________ microscope Uses electrons __________ TOOLS OF BIOLOGY COMPOUND LIGHT 1000X STEREO 40X Also known as ______________ scope DISSECTING 500,000X ELECTRON COMPOUND LIGHT STEREOSCOPE ELECTRON MICROSCOPE

2. LIGHT MICROSCOPE eyepiece Body Tube Turrett Arm Focus Objective Low Objective Stage High Power Objective Stage Clips Course Adjustment Diaphragm Fine Adjustment Light Source Base

3. Labeling the Parts of the Microscope (Independent Practice) EYEPIECE 1. 2. BODYTUBE TURRETT 3. ARM 10. 11. FOCUS OBJECTIVE 4. LOW POWER OBJECTIVE 5. STAGE CLIPS 12. HIGH POWER OBJECTIVE 13. COURSE ADJUSTMENT 6. STAGE 7. DIAPHRAGM 8. LIGHT SOURCE 14. FINE ADJUSTMENT 9. BASE

4. TOTAL MAGNIFICATION The focus objective focuses __________ The low power objective focuses _______ The high power objective focuses _______ 4X 10X 40X Keep in mind, there is also a lens in the EYEPIECE that focuses __________ “ON TOP OF” the magnification of the objective lenses. Therefore, _____________________________would be: _______________ X _________________ 10X TOTAL MAGNIFICATION OBJECTIVE EYEPIECE Practice: EYEPIECE X OBJECTIVE = TOTAL MAGNIFICATION TOTAL MAGNIFICATION OF FOCUS POWER __________ X __________ = ______________ TOTAL MAGNIFICATION OF LOW POWER __________ X __________ = ______________ TOTAL MAGNIFICATION OF HIGH POWER __________ X __________ = ______________ 10 4 40 X 100 X 10 X 10 X 10 X 40 X 400 X

5. EYEPIECE: BODY TUBE: Where you place your eye. Contains ______ ______ that usually magnifies ______. Tube that supports the ______ _______ and connects it to the _________________. EYE PIECE ONE LENS TURRETT/NOSE PIECE 10x

6. OBJECTIVES: STAGE CLIPS: ______________ that magnify objects to varying __________. FOCUS OBJECTIVE: ______________________________________________ LOW POWER OBJECTIVE: ______________________________________________ HIGH POWER OBJECTIVE: ______________________________________________ LENSES Holds the _____________ in place SLIDE “POWERS” SHORTEST LENS (4X) ONLY USED FOR SCANNING SMALL LENS (10 X) LOW MAGNIFYING POWER LONGEST LENS (40 X) HIGH MAGNIFYING POWER

7. ADJUSTMENTS BASE Knobs that make adjustments to the ______________ COURSE ADJUSTMENT ___________________________________________________________________________ FINE ADJUSTMENT ___________________________________________________________________________ FOCUS Supports the _____________ MICROSCOPE MAKES LARGE ADJUSTMENTS USED WITH FOCUS AND LOW POWER OBJECTIVES MAKES SMALL ADJUSTMENTS USED WITH HIGH POWER OBJECTIVE ONLY

8. LIGHT SOURCE: Directs light up through the ______________ and through the ______________ so that it may be ______________ DIAPHRAGM SPECIMEN VIEWED

9. STAGE: Supports the __________________ SLIDE/SPECIMEN

10. NOSEPIECE: Also known as the _______________. It is the rotating device that holds the _____________/ (_________). TURRETT LENSES OBJECTIVES

11. DIAPHRAGM An adjustable ________________ under the stage, allowing different __________ of __________ onto the stage. OPENING AMOUNTS LIGHT

12. ____________________________________________________________________________________________________________________________ arm - this attaches the eyepiece and body tube to the base.base - this supports the microscope.body tube - the tube that supports the eyepiece.coarse focus adjustment - a knob that makes large adjustments to the focus.diaphragm - an adjustable opening under the stage, allowing different amounts of light onto the stage.eyepiece - where you place your eye.fine focus adjustment - a knob that makes small adjustments to the focus (it is often smaller than the coarse focus knob).high-power objective - a large lens with high magnifying power.inclination joint - an adjustable joint that lets the arm tilt at various angles.low-power objective - a small lens with low magnifying power.mirror (or light source) - this directs light upwards onto the slide.revolving nosepiece - the rotating device that holds the objectives (lenses).stage - the platform on which a slide is placed.stage clips - metal clips that hold a slide securely onto the stage. _____________________________________________________________ __________________________________________________________ ____________________________________________________ ____________________________________________________ ________________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ __________________________________________________________ ____________________________________________________

13. arm - this attaches the eyepiece and body tube to the base.base - this supports the microscope.body tube - the tube that supports the eyepiece.coarse focus adjustment - a knob that makes large adjustments to the focus.diaphragm - an adjustable opening under the stage, allowing different amounts of light onto the stage.eyepiece - where you place your eye.fine focus adjustment - a knob that makes small adjustments to the focus (it is often smaller than the coarse focus knob).high-power objective - a large lens with high magnifying power.inclination joint - an adjustable joint that lets the arm tilt at various angles.low-power objective - a small lens with low magnifying power.mirror (or light source) - this directs light upwards onto the slide.revolving nosepiece - the rotating device that holds the objectives (lenses).stage - the platform on which a slide is placed.stage clips - metal clips that hold a slide securely onto the stage.