1. Warm-Up #12 9/6/12 1) To calculate the total magnification, you must multiple what two things? 2) What are the 3 types of microscopes? 3) When 1st looking at a slide, what power should be on and where should the stage be? 4) What is another name for low power? 5) What part of the microscope holds the objectives and rotates 360 degrees?

2. Quiz Study Guide  Types of microscopes  Calculate total magnification  15 parts of the microscope  Function of the 15 parts  What the microscope should look like when you 1st look at a slide  How you carry a microscope

3. Warm-Up #11 9/5/12 Match the number on the Microscope picture with the words provided. 1) Arm____ 2) Eyepiece_____ 3) Nosepiece_____ 4) Stage______ 5) Diaphragm______ 6) What is the total magnification of medium (10x) objective?

4. 1) Arm = # 3 2) Eyepiece = # 1 3) Nosepiece = # 4 4) Stage = # 9 5) Medium power total magnification = 10 (objective) x 10 (eyepiece)= 100x

5. Microscopes

6. Things to Know…  Essential Question: Would discoveries have been made if the microscope was not invented?  Objectives: Demonstrate the proper use of the microscope Illustrate the parts of the microscope

7. Compound Light Microscope Light passes through a specimen and uses two lenses to form an image

8. Eyepiece--1 Body tube--2 Arm--3 Nosepiece--4 Stage clips--5 Objectives--6 Stage stop--7 Slide--8 Stage--9 Coarse adjustment--10 Diaphragm--11 Light source--12 Fine adjustment--13 Power switch--14 Base--15

9. Parts of the Microscope 1. Eyepiece:  Always 10X  Where you look through to see the image of your specimen 2. Body Tube  Long tube that holds the eyepiece and connects it to the objectives

10. Parts of the Microscope 3. Arm:  Part of the microscope that you carry the microscope with 4. Nosepiece:  Rotating part of the microscope at the bottom of the body tube; it holds the objectives.

11. Parts of the Microscope 5. Stage Clips:  Shiny, clips on top of the stage which hold the slide in place 6. Objectives:  Low, medium, high, oil immersion  Helps magnify the image  Vary in length (the shortest is the lowest power or magnification; the longest is the highest power or magnification).

12. Objectives  4x objective—lowest power 4 x 10 = 40 x magnification Scanning objective  10x objective—medium power 10 x 10 = 100 x magnification  40x objective—high power 40 x 10 = 400 x magnification Objective X (eyepiece) = total magnification

13. Parts of the Microscope 7. Stage Stop:  Stops the stage 8. Slide:  Glass or plastic where specimen is placed

14. Parts of the Microscope 9. Stage:  *Stage starts all the way up when first looking, then slowly moves down  Large, flat area under the objectives; it has a hole in it (see aperture) that allows light through; the specimen/slide is placed on the stage for viewing.

15. Parts of the Microscope 10. Coarse Adjustment:  Large, round knob on the side of the microscope used for focusing the specimen; it may move either the stage or the upper part of the microscope

16. Parts of the Microscope 11. Diaphragm:  Controls the amount of light going through the aperture 12. Light Source:  Source of light usually found near the base of the microscope; the light source makes the specimen easier to see

17. Parts of the Microscope 13. Fine Adjustment:  Small, round knob on the side of the microscope used to fine-tune the focus of your specimen after using the coarse adjustment knob 14. Power Switch:  Turns it on and off

18. Parts of the Microscope 15. Base:  Hold the components to the microscope

19. Type of Microscope Source Magnification Specimen Dead or Alive? Other details… Compound Light Microscope Visible light rays 1000XEitherUses 2 lenses Scanning Electron Microscope Electron beam 100,000XDeadScans outside surface of specimen Transmission Electron Microscope Electron beam 100,000XDeadTransmits through specimen

20. Electron Microscope Focuses beams of electrons onto a specimen to form an image

22. Microscope Lab 1) Fill out the magnification table (other = medium) 2) Then look at the “e” slide in low power and medium power, then draw it 3) Look at one of the other slides 4) Answer the questions on back DO NOT WRITE ON MY PAPER!!!

34. Warm-Up #5 8/22/11 Describe what each symbol means and what you should do when you see it. 1) 2) 3) 4)

35. 1) Poison / Wear protective clothing and gloves 2) No Open Flame / Use electric burner instead of a flame 3) Toxic Fumes / Wear a mask, ventilate area 4) Wear safety goggles

36. Warm-Up #10 9/3/12 1) Which is bigger : 56 cm or 6 m ? 2) Which is bigger: 33 kL or 500,000 mL? 3) How should you always carry a microscope? 4) What is the purpose of a microscope? 5) What type of microscope do we have at school?