Make Your Own Microscope at Home

Total Page：16

File Type：pdf, Size：1020Kb

A STEM in the Parkk TTaakkee HHoommee AAccttiivviittyy Make Your Own Microscope At Home What You Need • a wide-mouthed clear jar, glass or plastic, with a lid • a small piece of plastic (attached) • tape • water • cardboard • foil • samples such as salt, sugar, or small insects like gnats What To Do 1. Poke a pinhole in the middle of the lid ( have an adult help you! ). 2. Tape the small piece of plastic over the pinhole on the inside of the lid. Be sure not to put tape over the pinhole! Tape only the sides of the plastic. 3. Cut a square piece of cardboard small enough to fit in the mouth of the jar and cover it in foil. This will act as a mirror to direct light to your sample! Continued on back 4. Using another piece of cardboard, prop up the foil-covered square so it sits at about a 45 degree angle. 5. Turn the jar upside-down and place it on top of the foil-covered cardboard square. 6. Place your sample on the bottom of the upside-down jar. 7. Using a medicine dropper or toothpick, place one drop of water on the plastic on the inside of the lid. Make sure it is directly on top of the pinhole on the plastic! 8. Place the lid on the bottom of the upside-down jar, on top of the sample. 9. Close one eye and view the sample through the water droplet and pinhole. 10. Move the lid up and down to focus! Why it works: Microscopes bend light through a series of mirrors and lenses to make an image appear larger than it really is. With this microscope, the water droplet acts as a convex lens, bending the light that is passing through it and making the sample look bigger! Experiment from Mr. Wizard: https://www.youtube.com/watch?v=APLGSA1A87o This activity is brought to you by Instrumentation Center at the University of Toledo www.utoledo.edu/nsm/ic.

Copy Link

Recommended publications

Ask Me About Microscope & Magnification…
ASK ME ABOUT MICROSCOPE & MAGNIFICATION… Today, an instructor from The Discovery Museums in Acton visited my classroom and led a hands-on program about microscopes and magnification. Ask me to tell you what amazing things I observed looking through lenses! I can tell you how I used water as a magnifier and we can explore together by trying the water lens activity below. I also really enjoyed using the 30x handheld microscopes. Ask me to tell you about all of the objects we checked out in our classroom such as the carpet, my desk surface, my hair and my skin. The hand held microscopes are sold at The Museums’ gift shop, science stores and some electronic shops. WATER SCOPE The first magnifiers were made with water lenses. Try making you own water lens. You will need: Small or large plastic yogurt containers, plastic wrap, pair of scissors, water, large rubber bands What to do: 1.) Ask an adult to cut the bottom of the yogurt container off, leaving at least a 3 inch wide ring. 2.) Cut a piece of plastic wrap and stretch it over the mouth of the yogurt container. Secure it with a rubber band. 3.) Push down gently on the top of the plastic wrap to make a shallow well. 4.) Pour a little water into this well. 5.) Place objects under the container and look through the water at the object. What do you notice? 6.) What happens if you change the amount of water you are looking through? Take it to the next step: Experiment with making additional water scopes.
[Show full text]
Plastic Industry Awareness of the Ocean Plastics Problem
Fueling Plastics Plastic Industry Awareness of the Ocean Plastics Problem • Scientists became aware of the ocean plastics problem in the 1950s, and understanding of the nature and severity of the problem grew over the next decades. • The major chemical and petroleum companies and industry groups were aware of the ocean plastics problem no later than the 1970s. • Plastics producers have often taken the position that they are only responsible for plastic waste in the form of resin pellets, and that other forms of plastic waste are out of their control. The use of plastics in consumer resins and the fossil fuel companies the twentieth century. Early observ- goods has been expanding exponen- supplying them with chemical feed- ers concerned about marine plas- tially since the late 1940s. Within stocks — have known about this tics were specifically worried about years of that expansion beginning, problem and for how long. The re- marine animals becoming entan- observers began to document plas- mainder of this document presents a gled in discarded fishing gear and tic pollution in the environment, brief overview of the history of pub- other plastic wastes. As noted by including in the world’s oceans. lic and industry awareness of marine the United States’ National Oce- Plastic is a pollutant of unique con- plastic pollution. Although this his- anic and Atmospheric Administra- cern because it is durable over long torical account is detailed, it is far tion (NOAA), “[p]rior to the 1950s periods of time and its effects accu- from comprehensive, and additional much of the fishing gear and land- mulate as more of it is produced and research is forthcoming.
[Show full text]
Electronic Communication in Plastic Surgery: Surgery: in Plastic Communication Electronic Copyright © 2017 American Society of Plastic Surgeons
SPECIAL TOPIC Downloaded Electronic Communication in Plastic Surgery: from Guiding Principles from the American Society https://journals.lww.com/plasreconsurg of Plastic Surgeons Health Policy Committee Kyle R. Eberlin, M.D. Background: With the advancement of technology, electronic communication Galen Perdikis, M.D. has become an important mode of communication within plastic and recon- Downloaded Lynn Damitz, M.D. by from structive surgery. This can take the form of e-mail, text messaging, video con- BhDMf5ePHKav1zEoum1tQfN4a+kJLhEZgbsIHo4XMi0hCywCX1AWnYQp/IlQrHD3wxNooCNzZvhCPLdW9NJ2mv6dqe+oOWSEH0yQQpVcu8c= https://journals.lww.com/plasreconsurg Dan J. Krochmal, M.D. ferencing, and social media, among others. There are currently no defined Loree K. Kalliainen, M.D. by BhDMf5ePHKav1zEoum1tQfN4a+kJLhEZgbsIHo4XMi0hCywCX1AWnYQp/IlQrHD3wxNooCNzZvhCPLdW9NJ2mv6dqe+oOWSEH0yQQpVcu8c= American Society of Plastic Surgeons guidelines for appropriate professional Steven C. Bonawitz, M.D. use of these technologies. ASPS Health Policy Methods: A search was performed on PubMed and the Cochrane database; Committee terms included “telemedicine,” “text messaging,” “HIPAA,” “metadata,” “video Boston, Mass. conferencing,” “photo sharing,” “social media,” “Facebook,” “Twitter,” and “In- stagram.” Initial screening of all identified articles was performed; the level of on 03/26/2018 evidence, limitations, and recommendations were evaluated and articles were reviewed. Results: A total of 654 articles were identified in the level I screening process; after
[Show full text]
Plastic Manufacturing Questionnaire
PLASTIC MANUFACTURING QUESTIONNAIRE Name of Agent: Applicant: Processing methods used: Blow Molding Extrusion Injection Molding Compression Molding Thermoforming Lay up Molding Calendering Other: Detailed description of manufacturing process: Type of plastics: Type 1 (PVC, teflon, metamine, fomica & phonetics, other: ) Type 2 (polyurethane, cellulose acetate & polypropylene, rubber, other: ) Type 3 (cellulose nitrate, pryroxylin & nitrocellulose, other: ) Is process automated, computer-operated or manual? Plastic resins used: Pellets Flakes Granules Powders Liquid Paste Other: Are electrical equipment and wiring explosion proof? ...................................................................................... Yes No Are all process equipment grounded and bonded? .......................................................................................... Yes No Does the equipment have automatic shut off? .................................................................................................. Yes No What is the age of the processing equipment? Describe any obsolete, imported or custom-made equipment: What is the inspection and servicing schedule for equipment (including conveyors, hydraulic lines, etc.)? How often is the electrical equipment and wiring inspected and serviced by a licensed professional? Are you in compliance with NFPA 70 on electrical codes? ............................................................................... Yes No Are you in compliance with NFPA 77 on static electricity? ..............................................................................
[Show full text]
Glossary of Materials Engineering Terminology
Glossary of Materials Engineering Terminology Adapted from: Callister, W. D.; Rethwisch, D. G. Materials Science and Engineering: An Introduction, 8th ed.; John Wiley & Sons, Inc.: Hoboken, NJ, 2010. McCrum, N. G.; Buckley, C. P.; Bucknall, C. B. Principles of Polymer Engineering, 2nd ed.; Oxford University Press: New York, NY, 1997. Brittle fracture: fracture that occurs by rapid crack formation and propagation through the material, without any appreciable deformation prior to failure. Crazing: a common response of plastics to an applied load, typically involving the formation of an opaque banded region within transparent plastic; at the microscale, the craze region is a collection of nanoscale, stress-induced voids and load-bearing fibrils within the material’s structure; craze regions commonly occur at or near a propagating crack in the material. Ductile fracture: a mode of material failure that is accompanied by extensive permanent deformation of the material. Ductility: a measure of a material’s ability to undergo appreciable permanent deformation before fracture; ductile materials (including many metals and plastics) typically display a greater amount of strain or total elongation before fracture compared to non-ductile materials (such as most ceramics). Elastic modulus: a measure of a material’s stiffness; quantified as a ratio of stress to strain prior to the yield point and reported in units of Pascals (Pa); for a material deformed in tension, this is referred to as a Young’s modulus. Engineering strain: the change in gauge length of a specimen in the direction of the applied load divided by its original gauge length; strain is typically unit-less and frequently reported as a percentage.
[Show full text]
Alternatives to Plastic Straws: Which Materials Are Suitable?
www.bfr.bund.de Alternatives to plastic straws: Which materials are suitable? Communication No 016/2021 from the BfR of 27 May 2021 Drinking straws are single use plastic products which will be subjected to a Europe-wide sales ban from 2021 onwards. This is stated in EU Directive 2019/904 from 5 June 2019. Conse- quently, alternative materials have to be established for the production of drinking straws as well as other frequently used products which predominantly were made of plastic so far. As set out in the EU Framework Regulation for food contact material (Regulation (EC) No. 1935/2004), objects that come into direct contact with food must be safe. The German Federal Institute for Risk Assessment (BfR) has appraised straw, silicone, metal, paper and paper- board, durum wheat, and glass for their suitability to replace plastic in the production of drinking straws. If frequently used, drinking straws made of silicone, stainless steel or glass are, in the opin- ion of the BfR, an appropriate alternative to plastic straws. Silicone is suitable as a food contact material (FCM) provided that its manufacture is compliant with the specifications of BfR rec- ommendation No. XV. Metals and alloys (e.g. stainless steel) are also appropriate as FCMs, provided that the specifications of the Council of Europe Resolution regarding metals and al- loys are met. Glass is also suitable for food contact. However, there is the risk of breaking. As a result, fragments of glass can get into the food or drink and in case of swallowing dangerous injuries can occur.
[Show full text]
Plastic Pollution Curriculum and Activity Guide
Plastic Pollution Curriculum and Activity Guide Table of Contents Grade K-3 • World of Waste Students collect and record data of the trash they generate, and describe strategies for using resources wisely (reduce, reuse, recycle, and recover). • There Is No Away Students identify the destination of the waste the generate at home and at school and the negative aspects of dumping or burning trash to ultimately recognize that there is no “away” in “throw it away” • What is a Watershed? Students are introduced to the concept of a watershed and the effects of pollution. • The Storm Drain Connection Students explore their school’s surrounding streets to identify storm drains in the neighborhood and understand that storm drains are connected to water systems and can become a significant source of water pollution • Plastic Pollution: It Can Be Deadly Students experience in a simulated setting the negative effects that plastic, in particular, can have on the feeding activities and health of wildlife, and consider the effects of plastic debris in the oceans and on the beaches from an animal’s perspective Grade 4-6 • Landfill in a Bottle Students create a simulated landfill environment to understand how household/school waste breaks down in a landfill and learn ways to reduce, reuse and recycle • Wrap It Up Students will examine the role of product packaging and resource waste • Spill Spread By simulating how currents are affected by temperature, students learn how pollution is transported away from our shores. Grade 7-12 • Synthetic Sand In this activity students conduct a transect of an area of beach to identify and catalogue the various materials collected there.
[Show full text]
Comparative Plastics Industry Manufacturing Operating Costs
COMPARATIVE PLASTICS INDUSTRY MANUFACTURING OPERATING COSTS The Boyd Company, Inc. Location Consultants Princeton, NJ A COMPARTIVE OPERATING PLASTICS INDUSTRY COST ANALYSIS SITE SELECTION TABLE OF CONTENTS COMPARATIVE OPERATING COST ANALYSIS: EXECUTIVE SUMMARY AND NOTES ...................................................................................................... 1 INTRODUCTION ................................................................................................................... 2 COMPARATIVE REGIONAL LOCATIONS ........................................................................... 2 LABOR COSTS ..................................................................................................................... 3 COMPARATIVE ELECTRIC POWER AND NATURAL GAS COSTS .................................. 3 COMPARATIVE LAND ACQUISITION AND CONSTRUCTION COSTS ............................. 3 COMPARATIVE AD VALOREM AND SALES TAX COSTS ................................................. 3 TOTAL ANNUAL OPERATING COST RANKINGS .............................................................. 4 ABOUT BOYD ....................................................................................................................... 4 COMPARATIVE OPERATING COST ANALYSIS ......................................................................... 5 EXHIBIT I: A COMPARATIVE ANNUAL OPERATING COST SIMULATION SUMMARY ..................................................................................................... 6 EXHIBIT II: COMPARATIVE ANNUAL
[Show full text]
Recycling Plastic: Complications & Limitations
Eureka Recycling is a nonprofit organization, created by the Saint Paul Neighborhood Energy Consortium, that specializes in recycling and waste reduction and manages Saint Paul’s recycling program. Our mission is to reduce waste today through innovative resource management and to reach a waste-free tomorrow by demonstrating that waste is preventable not inevitable. We believe that our resources are valuable—like gold—and our goal is to provide you with an opportunity to conserve them. Recycling Plastic: Complications & Limitations Plastic is light, easy to store and transport, comes in an endless variety of textures and shapes and can hold almost anything. Those properties make it attractive to manufacturers and packagers, who use it for anything from ketchup bottles to disposable utensils. Unfortunately, plastic is much more difficult to recycle than materials like glass, aluminum or paper. Most plastic soon ends up in a landfill or incinerator. Despite promotion of plastic recycling, plastic production has outpaced recycling by five times over the past decade. While increased plastic recycling is one way to alleviate this problem, it has only limited potential to reduce the glut of plastic waste. Resin Codes Don’t Equal Recyclability The Plastic Numbering System Most plastic packaging is marked with a Almost all plastic products are imprinted with a resin code — a small resin code to identify the basic type of number enclosed by the “chasing arrows” symbol. This code can be chemical compound used in the product. This code is usually found on misleading, since it is not intended to indicate that the plastic is the bottom of the container.
[Show full text]
FAQ Regarding the Plastic Bag Ban Why Has Amherst
FAQ Regarding the Plastic Bag Ban On May 25, 2016, Amherst Town Meeting enacted the Single Use Plastic Bag Prohibition bylaw to reduce the use of single use plastic bags and increase the usage of reusable, recyclable and/or biodegradable bags. The departments of Economic Development, Conservation and Public Health are partnering to help with the implementation of the bylaw and its intended purpose in the town of Amherst, to reduce plastic bag use overall. The following are frequently asked questions both about, and how to be in compliance with, the bylaw: Why has Amherst instituted a plastic bag ban? Amherst Town Meeting approved the citizen petition to ban single-use plastic bags because of the significant, harmful long-term effects of these bags on our environment. Many businesses have already recognized this and moved away from single-use plastic bags and we want to help your business do the same. Does this bylaw apply to my business? The bylaw applies only to retail, retail food, or service retail establishments within the Town of Amherst. Are there any exemptions? Yes. The bylaw does not apply to any type of business or not-for-profit organization that is not listed above. Also, bags used to contain dry cleaning, newspapers, produce, meat, cheese, bulk foods, wet items and other similar merchandise are permissible. What are the different types of plastic bags? There are many different types of plastic bags. Please see the “Bag Comparison Chart” to better understand the types of bags and whether they are compliant with the bylaw. What are the types of bags that are allowed for use under the bylaw? The bylaw allows for the use of the following: a.
[Show full text]
Plastics Innovation Challenge Draft Roadmap U.S
Plastics Innovation Challenge Draft Roadmap U.S. Department of Energy (This page intentionally left blank) PLASTICS INNOVATION CHALLENGE DRAFT ROADMAP List of Acronyms AMO Advanced Manufacturing Office ARPA-E Advanced Research Projects Agency-Energy BER Biological and Environmental Research BES Basic Energy Sciences BETO Bioenergy Technologies Office BOTTLE Bio-Optimized Technologies to keep Thermoplastics out of Landfills and the Environment DOE U.S. Department of Energy FOA funding opportunity announcement GHG greenhouse gas PET polyethylene terephthalate PIC Plastics Innovation Challenge R&D research and development REMADE Reducing EMbodied-energy And Decreasing Emissions iii PLASTICS INNOVATION CHALLENGE DRAFT ROADMAP Executive Summary Plastics have evolved tremendously and now serve many purposes in modern life, delivering a broad range of benefits. Plastics are versatile, durable, and lightweight and are cost-effective compared to many other materials, making them desirable in many applications. They are critical to the safe and economical distribution of food globally, make up energy-efficient packaging, provide lightweighting options to reduce the energy consumed by cars and airplanes, and are key components of many medical devices and safety equipment. Annually, over 300 million metric tons of new plastic are generated globally and only a small percentage is recycled. Most plastic waste ends up in landfills, but plastics also leak into the environment, representing an environmental challenge. Of particular importance to the U.S.
[Show full text]
Outline of Technology Examined in Examination Departments (PDF
Outline of Technology Examined in Examination Departments （2021.4.26） Patent and Design Examination Department (Physics, Optics, Social Infrastructure and Design) Division/Subdivision(Code) IPC Measurement Division(2F) G01F G01G G01K G01L G01P G01D G04BCDFGR G06M G08C G12B A99Z,B99Z,C99Z,D99Z,E99Z,F99Z,G99Z,H99Z Distance and Electricity Measurement G01B Sub-Division(2S) G01C(1/-15/,19/) G01S G01R(1/00-33/26,35/) Physical Properties Measurement Sub- G01JM(11/)N(21/-24/,27/00-27/10,27/14-27/24,27/60-29/) Division(2W) R(33/28-33/64) Applied Physics Division(2G) G21CD G01T(1/00-1/16,1/167-7/) G21FGHJK G21B H05H H01J(1/-21/,29/00-29/34,29/46-31/06,31/10-31/24,61/-99/)K H01J(23/-27/,29/36-29/45,31/08,31/26-49/) G03B(27/)D G03F(1/-5/,7/20-7/24,9/) H01L(21/027-21/033,21/30,21/46) B82BY Display Apparatus Sub-Division(2I) G03B21/-25/,33/ G09F(9/) G09G Material Analysis and Medical Diagnosis G01N(1/-19/,25/,35/-37/) Division(2J) G01HM(1/-10/,13/-99/)QVW G01N(27/12,27/26-27/49,30/-33/) C40B(20/-30/00,30/04-30/10,60/04,60/10-60/12) B01J(20/281-20/292) Medical Diagnosis Sub-Division(2Q) A61B(1/-5/0538,5/06-5/398,7/,9/-10/) Diagnostic Imaging Sub-Division(2U) H05G G01T(1/161-1/166) A61B(5/055,6/,8/) Applied Optics Division(2H) B41M(5/,99/) B44C(1/16-1/175) G03F(7/00-7/18,7/26-7/42) G03C(1/,3/00.301,5/-11/) G03G(5/-11/) Optical Apparatus Sub-Division(2V) G02B(7/-25/) G03B(1/-19/,29/-31/,35/-43/)C(3/00,3/00.351-3/02) Optical Elements and EL Devices G02B(1/-5/)C Sub-Division(2O) G03H H05B(33/) H01L(27/32,51/50-51/56) Division/Subdivision(Code) IPC Optical
[Show full text]