As in the case of an experimentally or field-based investigation, an extended essay based on secondary data requires a research question that can be explored and addressed using material obtained from the sources used. Data and information
can be found in peer-reviewed journal articles and reliable websites with sound scientific information.
A quick, effective way to determine how focused the author of an article is, is to refer to their tables, diagrams, graphs, and equations. How clearly are these are organized and presented? Is the style used by the author easy to follow?
The research question should have clear variables. This usually helps to establish a viable approach that includes analyzing and/or comparing data on a well-defined topic from different authors/sources, different times, different geographical locations etc.
For library-based essays the process used to identify and select relevant sources needs to be particularly thorough, and selection criteria for the material to be included should be made explicit in the essay. With a broad-based approach to background research in the early stages of the research, it is possible that not all of the sources accessed will turn out to be relevant. In this case the bibliography should be selective and should only include material that was actually used in the writing process.
When choosing sources, students must consider the setting of the scientific context for the research and the method's design if applicable. With this in mind, attention should be paid to the methods to be used for data analysis, the interpretation of data, the conclusion (that should respond to the research question) and evaluation of the method and data used. It is also important that students explain the type of sampling used to extract the data.
Research questions that link properties to brands (students may use label information of different foods to determine vitamin or other nutrients content) should be avoided as it is usually difficult to support the conclusion from a scientific point of view.
SOURCE: IBO DOCUMENT ON MANAGING SCIENCES AND GEOGRAPHY EXTENDED ESSAYS WITHOUT LAB WORK OR FIELD WORK.
There are numerous online sources of biological publications including NCBI, PubMed, DOAJ and Science Direct to name a few. Other sources of data include university and government websites and databases as well as data released by companies and other organizations involved in biological research and or biological products.
Students should always explain ideas carefully to show understanding of the relevant chemical principles underlying any investigation. When databases or other people´s results are used, students should be sure they understand the method used, that they will be able to use it to support their argument, and that they can evaluate it effectively.
There are some experiments that could be carefully done at home, using everyday chemicals such as vinegar, sodium hydrogen carbonate, cooking oil, hydrogen peroxide, etc. and electronic scales, together with glassware. However, students should take care to develop a challenging research question. If this option is being considered, health and safety procedures must be taken into account and discussed with the student.
It is also possible to produce a good essay using virtual labs.
With imagination, experimentation is possible, for example the water can collapsing experiment, making reference to Torricelli's law. However, it is important to note that if the student is carrying out an experiment at home, they must perform a risk analysis and check with the supervisor prior to starting any data collection.
Simulation is a method that can be useful, but it is important to list all the input statements you need to enter before the simulation comes into play. Which dependent variable(s) are to be explored? What are the corresponding independent variables? What uncertainties does the simulation present?
When using secondary sources, it is important to explain the origin of the available data, which experimental method was followed, what equipment was used, and what uncertainties and limitations are evident.
Survey essays in physics can be successful, but there are pitfalls to avoid. The purpose of the essay is not principally to inform the reader, nor to deliver a summary of collected information. The student should be personally involved, not simply act as an informant. Arguments, counter arguments, and critical thinking should be evident.
Due to the multidisciplinary nature of ESS, there are many online sources of publications. However, the data needs to be manipulated in order to investigate the association between the well-being of a society and the quality of the environment in which a society lives.
Students can use online sources of biological publications, for example, epidemiological data from WHO or PubMed. Other sources of data include university and government websites and databases as well as data released by other organizations involved in environmentally related research.
NCBI: www.ncbi.nlm.nih.gov
PubMed: pubmed.ncbi.nlm.nih.gov
Directory of Open Access Journals (DOAJ): doaj.org
ScienceDirect: https://www.sciencedirect.com/
The Red List: iucnredlist.org
NASA Climate Change: http://climate.jpl.nasa.gov/
National Wildlife Health Center: https://www.usgs.gov/centers/nwhc/publications
USDA nutrient database:
https://fdc.nal.usda.gov/ (contains a complete nutrition profile for various food and drink items)
Satellite Data: https://www.nasa.gov/content/goes
Ocean Tracks: oceantracks.org
The Paleobiology Database: http://paleobio.org/education/education.html
eBird: ebird.org
RCSB Protein Data Bank: http://pdb101.rcsb.org/
BioServers: http://www.bioservers.org/bioserver/ (Easy to use interface for DNA database searches)
ALFRED: https://alfred.med.yale.edu/ (allele frequency)
Helpful articles about understanding how to write an essay in physics in the journals The Physics Teacher (AAPT Physics Education) or Physics Education (IOP Science).
Example of an article from The Physics Teacher: The Physics Teacher, Vol. 5, Issue 4, pages 160-163, 1967 “A student exercise for determining the average density of a celestial body by a limiting process” by T. E. Pomeroy.
Online video analysis: Vernier’s LoggerPro https://www.vernier.com/product/logger-pro-3/. This programme allows the student to insert a video for analysis. The video can be one made by the student or one found online. The LoggerPro software comes with hundreds of videos. The student calibrates the scale, tracks the motion, and then can analyze the result.
Iteration: http://www.feynmanlectures.caltech.edu/I_09.html
Simulations:
https://phet.colorado.edu/en/simulations/filter?subjects=physics&sort=alpha&view=grid
Interactive Physics Simulations:
SERC, The Science Education Resource Center at Carleton College.
https://serc.carleton.edu/serc/search.html?search_text=physics+videos&search=Go
The PIVOT Interactives from Vernier provide an online supplement to hands-on experiments, videos that allow students to vary experimental parameters, and allows students to use embedded analysis tools to make measurements and develop their own conclusions
www.vernier.com/pivot-interactives
Interactive Video Vignettes: https://www.compadre.org/ivv/
Statistical and Thermal Physics: https://www.compadre.org/stp/
Cosmic Ray-eLab: http://www.i2u2.org/elab/cosmic/home/project.jsp
KCVS: King’s University in Edmonton, Canada, the website of King’s Center for Visualization
in Science: https://kcvs.ca/cards.html?type=applets
NASA (National Aeronautics and Space Administration), undergraduate computer programs to download:
https://www.grc.nasa.gov/WWW/k-12/UndergradProgs/index.htm
Particle Physics: OnScreen Science—accurate subatomic particle decay events simulation with analysis tools.
geophysics: Interactive Physics Simulations listed by topic: https://ophysics.com/index.html
PhET: The University of Colorado, Boulder, USA, the website for Physics Education Technology.
https://phet.colorado.edu/en/simulations/category/physics
Physlets and HTML5 Simulations for physics from Andrew Duffy. http://physics.bu.edu/~duffy/sims.html
The Physics Aviary: From Boston University includes topics for AP physics courses.
https://www.thephysicsaviary.com/Physics/Programs/Labs/find.php
yTEACH Web Site: http://www.yteach.com/
There are hundreds of simulations that are categorized by IB physics syllabus topics.
The Royal Society of Chemistry: www.rsc.org
PubChem: pubchem.ncbi.nlm.nih.gov
ChemSpider: www.Chemspider.com
Chemistry Views: www.chemistryviews.org
ACS: http://bitly.ws/fwhA
Virtual Chemistry Laboratory: http://www.chem.ox.ac.uk/vrchemistry/
Virtual lab: http://vlab.co.in/broad-area-chemical-sciences
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