1. TOPIC: Microscope 12/4/15 AIM: How do the parts of a microscope work to help us view our specimen? DO NOW: 1. Explain 1 difference AND 1 similarity between a microscope and a telescope. 2. Read passage and answer questions.

3. Microscope Instrument that magnifies a specimen

4. LENS curved glass magnifies

5. Simple Microscope 1 lens Compound Light Microscope 2 lenses stain (dye)

6. Field of View Area viewed when looking into microscope

7. Review 1.Describe the function of a microscope. 2.Define magnification. 3.Why are microscopes important?

8. TOPIC: Microscope 12/7/15 AIM: How do the parts of a microscope work to help us view our specimen? DO NOW: 1. Take out another sheet of loose leaf. 2. Write your name at the top. 3. Write this question and answer with 1 sentence. Microscopic organisms cause many diseases, such as strep throat. Describe ONE reason might a microscope be an important tool for a doctor? Put your pen/pencil down so I know when you are finished.

10. Eyepiece Ocular lens (magnifies10x) Lens you look through Body Tube Connects eyepiece to nosepiece

11. Objective Lenses Lenses that magnify Low – 4x Medium – 10x High – 40x

12. Nosepiece Rotates to switch objectives Base Supports weight of mic Arm connects body tube to base

13. Stage Where slide is placed Stage Clips Secure slide

14. Light Source Mirror or light Illuminates specimenmirror

15. Diaphragm Adjusts AMOUNT of light

16. Fine adjustment knob High power focus Sharpens image Coarse adjustment knob Larger focusing knob LOW POWER moves stage up and down

17. diaphragm stage arm nosepiece base Fine adj. Stage clips Light source Body tube Coarse adj. eyepiece Objective lens

18. eyepiece Coarse adjustment knob Fine adjustment knob arm stage base Stage clips Light source diaphragm Objective lens nosepiece Body tube

19. 1.Used to focus the specimen under high power. 2.Adjusts the amount of light reaching the specimen. 3.Platform slide is placed on. 4.Lenses under the nosepiece. 5.Used to focus specimen under low power. 6.Supports the weight of the microscope. 7.Keeps slide in place Let’s summarize. Identify the microscope part described.