Show Microscope LabAuthor(s): Craig Didden & Brandon Duran Microscopy - Teacher's Guide  Topics addressed 7. Scientific progress is made by asking meaningful questions and conducting careful investigations. As a basis for understanding this concept and addressing the content in the other three strands, students should develop their own questions and perform investigations. Students will: a. Select and use appropriate tools and technology (including calculators, computers, balances, spring scales, microscopes, and binoculars) to perform tests, collect data, and display data. This lab is designed as an introduction to microscope use and microscopy for middle school students. We have included two activities. One of them is an activity that uses slides that the students create themselves using newsprint and the letter"e". Getting the students comfortable with microscope usage is often the most difficult part of this activity. It is very important that they understand how to use the microscope and how it works. There is a diagram link below. Have the students study this diagram so that they know the parts, which objective to use. It is very important that the students don't focus to close to the slide with the high power objective, as this can permanently damage the lens. Study Guide: This activity should be done using the low power objective 1. This activity works best with newsprint. 2. With your scissors cut out the letter "e" from the newsprint. 4. Place a cover slip over the letters. 5. Using the low power objective focus on the letter. Make some general observations about Microscope Diagram History of the microscope Microscope Information Questions: 1. Did the letter appear in the same orientation when viewed through the microscope as viewed without the microscope? 2. When you move the slide to the right what direction does it appear to move under the microscope? 3. What happened to the image when you switched objectives? What are you looking at? Try your luck with the images. Guess what you are looking at then put your cursor on the image. Apple Orange Finger tip Paper Cardboard Gum Shirt References & Links: Using the Microscope History of the Microscope Microscope Intro Video TranscriptThe figure shows a microscope. Choose the letter that indicates the position where the slide, with the specimen, is placed for viewing. To answer this question correctly, let’s take a look at the parts of the microscope labeled in this diagram and review how the microscope is used to examine a specimen. Microscopes allow us to see organisms that are too small to be seen by the naked eye. They make the object look bigger by passing light from the object through magnifying lenses, so we see a larger image. But how do we use a microscope to examine a specimen? First of all, the specimen needs to be placed on a glass slide. The slide is then placed on the stage, labeled D here, and held in place by the stage clips. Light is then emitted from the light source, labeled B, below the specimen. The light passes through an adjustable apparatus below the stage, called the diaphragm or iris. This diaphragm adjusts the intensity of the light getting through to the specimen. The light then passes through the specimen on the slide and into the first of two magnifying lenses. As it is the lens closest to the specimen, or object, it is called the objective lens. There are usually three or four objective lenses of different powers on a revolving nosepiece attached to the head, here labeled C. As the light rays pass through the objective lens, a magnified image of the specimen is formed. The light from the image then passes through the second of the lenses found in the eyepiece, labeled A. So it is called the eyepiece lens. As the light passes through the eyepiece lens, the image is magnified again to form the final image. The final label on this diagram is E, the base, which provides a firm, heavy platform, enabling us to use the microscope. Now that we have reviewed the parts of the microscope and how a microscope is used to examine a specimen, we can return to our question. It asks us to choose the letter that indicates the position where the slide with the specimen is placed for viewing. We now know the correct answer is the stage, which is represented by letter D. What is the position of the letter as seen under the microscope?The letter appears upside down and backwards because of two sets of mirrors in the microscope. This means that the slide must be moved in the opposite direction that you want the image to move.
What is the position of letter E?E, or e, is the fifth letter and the second vowel letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide.
What is the position of the letter?In letter-context schemes, a letter's position is defined relative to its surrounding letters. In syllabic schemes, a letter's position is defined relative to the syllable in which it appears, and its role within that syllable.
What is the position of the letter E as seen under the low power object LPO?The glass slide was placed on the stage making sure that the letter “e” was at the center of the hole on the stage and under the low power objective.
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When looking at letter under the microscope What is the position of the letter as seen under the microscope?
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