1. Microscope Basics (1) Parts and focusing Label hand-out

2. Label the Compound Light Microscope (Handout) Ocular lens Body Tube Coarse Adjustment Knob Fine adjustment Knob Revolving nosepiece Objective lenses (4x, 10x, 40x) ArmStage Stage Clips Diaphram Light source Base

3. Focusing with a Microscope Plug in and turn on. Plug in and turn on. Lower stage completely. Lower stage completely. Turn nosepiece to low objective. Turn nosepiece to low objective. Raise stage with coarse objective until specimen is seen. (Big knob) Raise stage with coarse objective until specimen is seen. (Big knob) Fine focus the specimen. Fine focus the specimen. Centre specimen in the field of view. Centre specimen in the field of view. Rotate nosepiece to medium power objective. Rotate nosepiece to medium power objective. Refocus with fine adjustment. Refocus with fine adjustment. Re-centre the specimen. Re-centre the specimen. Refocus with fine adjustment. (Be careful not to break the slide.) Refocus with fine adjustment. (Be careful not to break the slide.) Adjust the condenser. (Light) Adjust the condenser. (Light) Start over to look at another specimen. Start over to look at another specimen. Carrying and storage instructions. Carrying and storage instructions.

4. Microscope and Cell Theory Assignment – pages 140-141 Microscope and Cell Theory Assignment – pages 140-141 Questions 1 – 4 in green box Questions 1 – 4 in green box