COURSE STRUCTURE CLASS X First Term Units I. II. III. IV Chemical Substances World of living Effects of Current Natural Resources Total Marks : 90 Marks 33 21 29 07 90 Theme : Materials Unit : Chemical Substances - Nature and Behaviour (30 Periods) Chemical reactions : Chemical Equation, Balanced chemical equation, implications of a balanced chemical equation, types of chemical reactions : combination, decomposition, displacement, double displacement, precipitation, neutralization, oxidation
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refracting or bending light rays Virtual: image that can't be seen directly; real: image can be seen directly with naked eye Light passes through two lenses forming virtual image, and a magnifying glass appears larger due to refraction, the eyepiece lens contributes to magnification Illumination of a specimen from above used to examine opaque specimens, a transmitted illumination passes light up through a transparent specimen so it wouldn't be able to pass light through an opaque specimen Take the
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The most interesting thing I observed in today’s microscope lab was that I was able to view algae from a sample of pond water. The total magnification which I made the observation was 450. Been able to see algae just with the sample of pond water is amazing because whenever I see pond water I never think about what it beholds I just thought of it as water and nothing spectacular. 2. In the plant cell I observed the chloroplast organelle. My observations for the chloroplast organelle was that
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lenses to magnify the image. The light first goes in the primary lens and then the light goes
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Optics Mirrors and Lenses Reflection We describe the path of light as straight-line rays Reflection off a flat surface follows a simple rule: angle in (incidence) equals angle out (reflection) angles measured from surface “normal” (perpendicular) Reflection Vocabulary Real Image – Image is made from “real” light rays that converge at a real focal point so the image is REAL Can be projected onto a screen because light actually passes through the point where the image appears Always inverted
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For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device which transmits and refracts light, converging or diverging the beam.[citation needed] A simple lens consists of a single optical element. A compound lens is an array of simple lenses (elements) with a common axis; the use of multiple elements allows more optical aberrations to be corrected than is possible with a single element. Lenses are typically made of glass or transparent plastic. Elements
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The use of 1 Microscopes Name: Khulud Abdulaziz Nazer ID: U00045236 September 23 2014 General biology lab Section: 13 T Instructor: Tasneem Obaid Introduction: Microscopes are instruments used to enlarge objects that are too small to be seen by one’s eyes. Microscopy is the science of the examination of small objects using microscopes. Technically we have two types of microscopes, the optical microscope which was first invented in late 1500s. It uses light and glass lenses (objectives)
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BIO 111, Microscope Lab Write-up Directions You must type your answers neatly so I can read them. Do not tear out the pages of your lab manual and turn them in to me. Your lab write-up is due at the beginning of your next lab and should include: 1. Your name and lab section Taylor Abel 2. Results and Observations section a. Sketches of the letter e’s. Explain why they look different. The e’s all look different due to the different objectives. Each objective has a different
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descriptions about what a microscope is and what is exactly used for; assuming part of the audience doesn’t know that much about microscopes. I will explain about parts of the microscope and what function they have; parts such as eyepiece, objective lens, focus adjustment knob, stand column, and etc. I will put a figure showing each part so the audience has a better understanding of the microscope. I will mention all the parts that are included in the box and all the extra equipment needed for the
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with a pen, pulled a strand of hair from my head and pulled a string off of my jacket. Then I turned on the microscope, prepared my slide and proceeded to look at each object under the microscope. Data: If the slide was too close or too far from the lens than you will not be able to see the specimen. The larger the magnification on the microscope the more detail that can be seen. The course and fine adjustment knobs move the slide up and down to help focus the specimen on the slide. The mechanical
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