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Demonstrating Buoyancy in Waterlogged Ground
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Hughes, Stephen – Physics Education, 2022
Archimedes' principle is one of the foundation subjects in physics. Normally the principle is exemplified by reference to floating boats. However, Archimedes' principle also applies to objects embedded in waterlogged ground, which can lead to the surprising result of an object weighing several tons being lifted. A practical example is presented of…
Descriptors: Physics, Science Instruction, Teaching Methods, Scientific Principles
Approaching Diesel Fuel Quality in Chemistry Lab Classes: Undergraduate Student's Achievements on Determination of Biodiesel Content in Diesel Oil Applying Solvatochromic Effect
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Cavalcante dos Santos, Rafael; Cavalcanti, Juliane Natalizi Cabral; Werneck do Carmo, Elisa Carneiro; de Souza, Fernando Costa; Soares, Wesley Garcia; de Souza, Cristiane Gimenes; de Andrade, Débora França; d'Avila, Luiz Antonio – Journal of Chemical Education, 2020
An experimental procedure is presented that was developed by fifth-year chemical engineering and industrial chemistry undergraduates at the Federal University of Rio de Janeiro doing the discipline on Experimental Organic Technology. The aim of this study was to apply the solvatochromic effect of the dye Nile Blue chloride to the characterization…
Descriptors: Science Instruction, College Science, Undergraduate Study, Chemistry
Have Biofuel, Will Travel: A Colorful Experiment and a Different Approach to Teach the Undergraduate Laboratory
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El Seoud, Omar A.; Loffredo, Carina; Galgano, Paula D.; Sato, Bruno M.; Reichardt, Christian – Journal of Chemical Education, 2011
The substitution of petroleum-based fuels with those from renewable sources has gained momentum worldwide. A UV-vis experiment for the quantitative analysis of biofuels (bioethanol or biodiesel) in (petroleum-based) diesel oil has been developed. Before the experiment, students were given a quiz on biofuels, and then they were asked to suggest a…
Descriptors: Fuels, Science Instruction, Science Experiments, Laboratory Experiments
Distillation. Third World Science.
Jones, Natalie; Hughes, Wyn – 1982
This unit, developed by the Third World Science Project, is designed to add a multicultural element to existing science syllabi (for students aged 11-16) in the United Kingdom. The project seeks to develop an appreciation of the: boundless fascination of the natural world; knowledge, skills, and expertise possessed by men/women everywhere;…
Descriptors: Alcoholic Beverages, Alternative Energy Sources, Chemistry, Cultural Activities
Methane Digestors. Third World Science.
Jones, Natalie; Hughes, Wyn – 1982
This unit, developed by the Third World Science Project, is designed to add a multicultural element to existing science syllabi (for students aged 11-16) in the United Kingdom. The project seeks to develop an appreciation of the: boundless fascination of the natural world; knowledge, skills, and expertise possessed by men/women everywhere;…
Descriptors: Chemical Reactions, Cultural Activities, Developing Nations, Elementary School Science
Practical Activities for Out-of-School Science and Technology Education. Science and Technology Education Document Series No. 17.
Venkatasamy, D.; And Others – 1986
A pilot project was undertaken in 1984 at the Mauritius Institute of Education for the purpose of developing and preparing teaching/learning materials for out-of-school Science and Technology Education programs. This volume is one in a series of UNESCO programs which encourage an international exchange of ideas and information on science and…
Descriptors: Agricultural Education, Conservation (Environment), Elementary Secondary Education, Food