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Lopes, Andressa Rubim; Leandro, Luana Paganotto; Mariano, Maria Vitória Takemura; Posser, Thais; Franco, Jeferson – Biochemistry and Molecular Biology Education, 2023
Ethanol (EtOH) is among the most consumed drugs in the world. The behavior of humans after ingestion of this drug is characteristic: At low doses it may be excitatory and at higher doses, it may induce depressant/sedative effects. Similar effects are observed in the zebrafish experimental model ("Danio rerio"), which has about 70%…
Descriptors: Drug Abuse, Animals, Biochemistry, Science Laboratories
Hunter Michael Craig – ProQuest LLC, 2024
The threat of climate change makes it increasingly important for biologists and the public to understand how organisms respond to temperature. The Metabolic Theory of Ecology (MTE) predicts that temperature should affect organism performance, with implications for species interactions and ecosystems that span disciplines including mathematics,…
Descriptors: Climate, Metabolism, Animals, Science Laboratories
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Carrie Ann Sharitt; Michael J. Vanni – American Biology Teacher, 2023
Many high school students learn about nutrient cycling during biology, environmental science, and agriculture classes. These lessons often focus on soil and plants, and nutrient cycling is usually taught independently from climate change. Scientists know that animals, including fish, can have strong effects on nutrient cycling (i.e., nitrogen and…
Descriptors: High School Students, Hands on Science, Summer Programs, Science Laboratories
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Wonhyeuk Jung; Christopher S. Dunham; Katie A. Perrotta; Yu Chen; James K. Gimzewski; Joseph A. Loo – Journal of Chemical Education, 2022
Food safety science is an important field due to its practical applications in maintaining public safety and confidence in consumer goods. A significant component of food safety science is the detection and regulation of heavy metals in food. Heavy metals such as mercury (Hg) are of particular concern because of their potential to damage the…
Descriptors: Chemistry, Science Instruction, Food Standards, Safety
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Vergara Sandoval, Camilo Sebastián; López Simó, Victor; Couso Lagarón, Digna – Journal of Biological Education, 2022
This research aims to analyse the progression of 13-14 year-old students' ideas regarding the concept of energy transfer by means of heat in three biological mechanisms of thermal regulation. The outputs of 270 students, grouped in 77 cooperative groups, are analysed by comparing their explanations before and after conducting an experimental…
Descriptors: Early Adolescents, Biology, Physiology, Cooperative Learning
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Vandervoort, Kurt – Physics Teacher, 2020
Newton's law of cooling describes an object whose temperature decreases exponentially with time. Because of its many applications, it is a frequent topic of introductory physics labs. In this article, I describe an experiment designed for the freshman year algebra-based physics course that applies this law to answering the question, "Why…
Descriptors: Science Instruction, Scientific Principles, Heat, Science Experiments
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Ambrosino, Christine M.; Rivera, Malia Ana J. – Journal of Biological Education, 2022
This high school-level, place-based, inquiry-driven laboratory module familiarises students with techniques used to analyse animal behaviour while facilitating the development of the observational skills highlighted by the Next Generation Science Standards (NGSS). Throughout the module, students observe, quantify, and discuss local invertebrate…
Descriptors: High School Students, Place Based Education, Science Instruction, Science Laboratories
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Rajapaksha, Suranga M.; Samarasekara, Dulani; Brown, John Charles; Howard, Leslie; Gerken, Katherine; Archer, Todd; Lathan, Patty; Mlsna, Todd; Mlsna, Deb – Journal of Chemical Education, 2018
Proficiency with instrumental analysis via GC-MS is an important skill for chemistry students. The application of analytical techniques and fundamental theoretical principles to real-world problems can be valuable learning exercises for undergraduates which can also improve their analytical thinking skills. Xylitol is generally considered safe for…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
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Geisert, Rodney D.; Smith, Michael F.; Schmelzle, Amanda L.; Green, Jonathan A. – Advances in Physiology Education, 2018
In this teaching laboratory, the students are directed in an exercise that involves designing and performing an experiment to determine estrogen's role in regulating delayed implantation (diapause) in female rats. To encourage active participation by the students, a discussion question is provided before the laboratory exercise in which each…
Descriptors: Birth, Biology, Animals, Science Instruction
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Ryan, Amy B.; Elwess, Nancy L. – Bioscene: Journal of College Biology Teaching, 2017
This investigative laboratory activity engages students in observing, recording, graphing and analyzing pulsation rates in a commonly used laboratory organism, blackworms. This activity stresses how various drugs can impact the pulsation rate in blackworms at varying concentrations. In addition, we have incorporated two new ways to view the…
Descriptors: Science Instruction, Science Experiments, Science Activities, Science Laboratories
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White, Jacob; Means, John A.; Hall, Tim; Shockley, Denise – Science Teacher, 2020
Polychlorinated biphenyls (PCBs) are a family of synthetic chemicals consisting of carbon, hydrogen, and chlorine atoms. PCBs have been produced commercially since 1929 in hundreds of industrial applications. Their continued production in the United States was phased out in the late 1970s, and strict disposal guidelines were regulated as adverse…
Descriptors: Science Instruction, Chemistry, Hazardous Materials, Animals
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Kristian, Kathleen E.; Friedbauer, Scott; Kabashi, Donika; Ferencz, Kristen M.; Barajas, Jennifer C.; O'Brien, Kelly – Journal of Chemical Education, 2015
Analysis of mercury in fish is an interesting problem with the potential to motivate students in chemistry laboratory courses. The recommended method for mercury analysis in fish is cold vapor atomic absorption spectroscopy (CVAAS), which requires homogeneous analyte solutions, typically prepared by acid digestion. Previously published digestion…
Descriptors: Science Instruction, Chemistry, Science Laboratories, Spectroscopy
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Ibarguren, Izaskun; Villamarín, Antonio – Journal of Biological Education, 2017
All the cells of higher organisms have the same DNA but not the same proteins. Each type of specialised cell that forms a tissue has its own pattern of gene expression and, consequently, it contains a particular set of proteins that determine its function. Here, we describe a laboratory exercise addressed to undergraduate students that aims to…
Descriptors: Biology, Animals, Cytology, Genetics
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Pecor, Keith W.; Lake, Ellen C.; Wund, Matthew A. – American Biology Teacher, 2015
Optimal foraging theory attempts to explain the foraging patterns observed in animals, including their choice of particular food items and foraging locations. We describe three experiments designed to test hypotheses about food choice and foraging habitat preference using bird feeders. These experiments can be used alone or in combination and can…
Descriptors: Animals, Food, Ecology, Science Experiments
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King, Nicola; Van der Touw, Thomas; Spowart, Lucy; Lawlor, Craig – European Journal of Science and Mathematics Education, 2016
There has been an increasing movement towards the introduction of inquiry based learning in undergraduate physiology laboratories. Students can however find this challenging when there is a sudden transition from traditional didactic practicals to full inquiry based activities. One reason for this could be the students' perceptions about the…
Descriptors: Student Attitudes, Active Learning, Inquiry, Science Laboratories
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