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Direct linkAnjos, R. M.; Amaral, S. S. G.; Muniz, M. C.; Cardoso, R. P.; Bernardo, T. A. S.; Guerrieri, A.; Lage, L. L. – Physics Education, 2020
Harmful plastic debris found on beaches and in the oceans are not limited to drinking straws or bags. There are several synthetic organic polymers that can be used to make different kinds of plastic materials and have resulted in billions of tons of waste that can reach the aquatic biome and are harmful to freshwater and marine communities as well…
Descriptors: Spectroscopy, Teaching Methods, Science Instruction, Plastics
Volmer, Dietrich A.; Curbani, Luana; Parker, Timothy A.; Garcia, Jennifer; Schultz, Linda D.; Borges, Endler Marcel – Journal of Chemical Education, 2017
This experiment describes a simple protocol for teaching acid-base titrations using potentiometry, conductivity, and/or photometry to determine end points without an added indicator. The chosen example examines the titratable acidity of a red wine with NaOH. Wines contain anthocyanins, the colors of which change with pH. Importantly, at the…
Descriptors: Biotechnology, Teaching Methods, Food, Chemistry
Aroca, S. C.; Schiel, D.; Silva, C. C. – Physics Education, 2008
The present article describes some activities performed with high-school students in the "Solar Physics" course developed in a Brazilian science centre. The topics of chemical composition, temperature and stellar evolution were taught in a room totally dedicated to study of the Sun, a solar room, designed with simple and inexpensive…
Descriptors: Interdisciplinary Approach, Physics, Climate, High School Students
