PPT-Todays Lesson: The Microscope

Learning Objectives Create a timeline to show the history of the Microscope Label and give the function of each part of the microscope U se the microscope correctly to view slides and work out magnification. Microscopes are delicate and expensive instruments they should be handled with utmost care Before you use the microscope your instructor will explain its proper use Following are rule s that will protect the microscope and insure that you can make m Care. Parts. Focusing. Types of Microscopes. Compound Light . Microscope - .  the models found in most schools, use compound lenses to magnify objects. The lenses bend or refract light to make the object beneath them appear closer.. CONCEPTS EXPLORED IN THIS LESSON. ocular lens / eyepiece. body tube. arm. base. light source/illuminato. r. revolving/rotating nosepiece. objective lenses. coarse adjustment knob. fine adjustment knob. Basics. Nosepiece. Objectives. Stage Clips. Light. Ocular lens. (Eyepiece). Arm. Stage. Coarse . Adjustment. Knob. Fine . Adjustment. Knob. Always carry a microscope with one hand holding the arm and one hand under the base.. . 2. Compound Light Microscope. Used to observe small objects. Magnifies images up to 2000X their size. 3. Different parts of a microscope. copyright cmassengale. SCI.9-12.B-1.2. - [Indicator] - Use appropriate laboratory apparatuses, technology, and techniques safely and accurately when conducting a scientific investigation. From its humble beginnings the microscope has undergone numerous revisions since Leeuwenhoek’s day. But its usefulness has certainly not diminished. Numerous types of Microscopes are currently being used. Visit the following for a more detailed description of them. . Instrument used to make very small objects appear larger. Resolution. .  how clear an image is. . Magnification.  how much larger an object appears. Field of view .  area that you see through the lens. http://biology.unm.edu/ccouncil/Biology_203/Summaries/Microscopes.htm. 1. When moving your microscope, always carry it with both hands. Grasp the arm with one hand and place the other hand under the base for support.. How to Focus on Specimen. Turn on light source on high. Turn the objective to low (4x). Lower the objective lens so that it is close but not touching the slide. Center the image by moving the stage. Adjust the diaphragm for optimum light. Light Microscope. Simple – uses a single lens. . Compound – uses a set of lenses or lens systems (this is the type of microscope we use in class, it has the eyepiece lens (ocular) and the objective lens). Compound Light Microscope. The compound light microscope is a common tool in a life science laboratory. A . compound light microscope. is an instrument that magnifies small objects so that they can be seen easily. . La gamme de thé MORPHEE vise toute générations recherchant le sommeil paisible tant désiré et non procuré par tout types de médicaments. Essentiellement composé de feuille de morphine, ce thé vous assurera d’un rétablissement digne d’un voyage sur . Todays Marriage Genesis 2:24 Todays Marriage Todays Marriage Todays Marriage Genesis 1:27-28 Todays Marriage Todays Marriage Acts 17:30 Todays Marriage Todays Marriage Many today marry without considering . Presented by. Mst. . Taslima Nasrin. Head Teacher. Joymongalpur. Govt.Primary. School. Chauddagram. , Cu. milla. .. Our todays lesson is . English For Today. Class:5. Unit:21. Lesson:. 3-4.