Do Now Take out homework (1.4 vocabulary) Get ready for your vocabulary quiz (5 minutes to study) Homework: Outline 1.5 and bring in current event for.

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Presentation transcript:

Do Now Take out homework (1.4 vocabulary) Get ready for your vocabulary quiz (5 minutes to study) Homework: Outline 1.5 and bring in current event for tomorrow!

Microscope Activity Lets see how much you know about microscopes! On the post-it notes, label them 1-8 You have 3 chances to get it right! So make sure when you call me over you are sure that you want me to check it!!!

Microscope Activity 1. Stage 2. Arm 3. High Power Objective 4. Diaphragm 5. Nosepiece 6. Eyepiece 7. Stage Clips 8. Course Adjustment

MICROSCOPES

Class Quiz

NOSEPIECE Low Power Obj Medium Obj HIGH POWER OBJECTIVE STAGE CLIPS DIAPHRAGM LIGHT SOURCE EYEPIECE ARM STAGE COURSE ADJ. KNOB FINE ADJ. KNOB BASE Body tube

PARTS OF A MICROSCOPE Light source (illuminator) Condenser or Diaphragm Stage – Stage clips

Parts of a Microscope Adjustment Knobs – Coarse Adjustment – Fine Adjustment

PARTS OF A MICROSCOPE Objectives – Scanning Objective – Low Power Objective – High Power Objective – Nosepiece

Parts of a Microscope Ocular Lens

Parts of a Microscope Arm Base

CALCULATING TOTAL MAGNIFICATION Magnification of the eyepiece X the magnification of the objective = TOTAL MAGNIFICATION

Total Magnification Calculation If the ocular lens = 10x And the scanning objective = 4x What is the Total Magnification? 40X

Total Magnification Calculation If the ocular lens = 10x And the low power objective = 10x What is the total magnification? 100X

TOTAL MAGNIFICATION PROBLEM If ocular lens = 10X And the high power objective = 40X What is the total magnification? 400X

HANDLING A MICROSCOPE With your dominant hand grasp the arm Rest your other hand under the base of the microscope ALWAYS KEEP THE MICROSCOPE IN THE UPRIGHT POSITION!!

WHEN YOU ARE PUTTING THE MICROSCOPE AWAY… Remove the last slide you were working with and put it where it belongs Rotate the nosepiece so that the low power objective is in position Wind the cord around the base of the arm of the microscope