1007936
This introduction to light microscope usage provides step by step instructions that facilitate discovery of how microscope affects an image. A java based interactive simulation is also included.
Summary
| Subject keyword(s) | Bacteria, Cell, Lenses, Life Science, Life science, Light, Physical science, Physics, Protists, Refraction, Science and technology, Technological design |
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| Grade level | Middle School, High School, Vocational/Professional Development Education |
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| Intended audience | Educator |
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| Resource type | Audio/Visual, Instructional Material |
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| Resource format | image, image/jpeg, text, text/html |
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| Rights | Copyright 1995-2004 by Michael W. Davidson and The Florida State University. All rights reserved. |
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| Title | Middle School Portal: Math and Science Pathways (MSP2) |
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| Link | http://msteacher2.org/ |
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| Description | The Middle School Portal 2: Math and Science Pathways (MSP2) supports middle grades educators with high-quality, standards-based resources and promotes collaboration and knowledge-sharing among its users. Educators use MSP2 to increase content knowledge in science, mathematics, and appropriate pedagogy for youth ages 10 to 15. MSP2 employs social networking and digital tools to foster dynamic experiences that promote creation, modification, and sharing of resources, facilitate professional development, and support the integration of technology into practice. MSP2 is a project of the Ohio State University College of Education and Human Ecology, National Middle School Association, and Education Development Center, Inc., and is funded by the National Science Foundation. The partners integrate resources, tools, and services across projects, and support multiple methods of resource discovery to meet the needs of this audience. |
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| Full description and distribution of resources |
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Content contained within the resource
Visit the Molecular Expressions Website Galleria Photo Gallery Silicon Zoo Chip Shots Screen Savers Museum Web Resources Primer Java Microscopy Win Wallpaper Mac Wallpaper Publications Custom Photos Image Use Contact Us Search Home Exploring Microscopes The compound microscope is believed to have been invented around 1595 by Zacharias Janssen and his father Hans Janssen. Their primitive device had two lenses that only allowed them to see objects about nine times larger than normal. The invention, however, quickly underwent many changes as other scientists altered the initial design. By 1665 some microscopes were able to magnify up to 250 times, a significant improvement over the capabilities of the early Janssen instrument. Required Materials Science notebook Slide Glass marking wax pencil Dropper Small container of water Magnifying glass Ultrascope Source of light (flashlight or good room light) Newsprint and comics from the newspaper Activity Directions Draw a circle in the center of the slide with the glass marking wax pencil. The circle should be a little smaller than the diameter of a dime. Add one drop of water to the circle and observe a lower case "e" in a piece of newspaper by looking through the drop. Draw what you in your science notebook. Is the "e" upside down or right side up? Is the "e" larger or smaller than the printed "e"? Add two drops of water to the circle, observe the "e" again and draw what you see. Add three drops of water to the circle, observe the "e" again and draw what you see. Now start over with a one-drop microscope and observe a piece of colored paper from the comics. Explain what you see. Observe the colored paper again using a two drop and a three drop microscope. Draw what you see in your science notebook. Look at the newspaper "e" and the colored picture from the comics with the magnifying lens. How is the image similar and how is it different from what you saw using the water drop microscope? Now use the Ultrascope to view the newsprint and the colored paper from the comics. If the paper is too thick for light to pass through it from the mirror, then have a partner shine the flashlight down on the slide so that the paper is well lighted. How is what you see different from what you observed with the other two types of microscopes? Is the letter "e" right side up or upside down? What are the three colors of the dots that make up the comics? Which of the microscopes produced the largest image? The power of a microscope is described with a number followed by the letter "x." For example, if through a microscope you can see something 25 times larger than actual size, its magnification power is 25x. With most microscopes you can change lenses to increase or decrease magnification power. Click on the link below to see what various things look like through a microscope at different magnifications. Interactive Java Tutorial Microscope MagnificationExplore what various things look like through a microscope at different magnifications. BACK TO ACTIVITIES IN OPTICS BACK TO THE TEACHER GUIDEBOOK Questions or comments? Send us an email. © 1995-2012 by Michael W. Davidson, the Center for Integrating Research and Learning, and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to the Legal Terms and Conditions set forth by the owners. This website is maintained by our Graphics & Web Programming Team in collaboration with Optical Microscopy at the National High Magnetic Field Laboratory. Last Modification Friday, Aug 01, 2003 at 10:43 AM Access Count Since November 1st, 2000: 43637 Visit the websites of our partners in education:
