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Kosmaca, Jelena; Siiman, Leo A. – Physics Education, 2023
Online video experiments are a promising educational technology tool for science laboratory classes. In order to find optimal instructional designs and scenarios for using online video experiments, we need to study learners' experiences. This work describes implementation of an online interactive video experiment at the undergraduate introductory…
Descriptors: Science Experiments, Educational Technology, Science Laboratories, Laboratory Experiments
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Gumilar, Surya; Ismail, Ali – Research in Science & Technological Education, 2023
Background: Physics textbooks are a learning resource for students to acquire knowledge and information. The findings of previous studies on physics textbooks analysis have mostly focused on representations of gender, the nature of science, and scientific literacy. This study, therefore, extends the critical content analysis of physics textbooks…
Descriptors: Laboratory Experiments, Foreign Countries, Physics, Textbook Content
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Yongwu He; Mo Chen; Jing Wang; Gaomei Zhao; Songling Han; Yang Xu; Yin Chen; Cheng Wang; Junping Wang – Journal of Chemical Education, 2023
The dangers of organic dye pollutants and environmental pollution improvement through photocatalytic degradation are important courses in applied chemistry programs in universities. Zinc oxide (ZnO)-based nanomaterials are potent catalytic agents against organic dyes, but few experiments are available for students to understand their role and…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Spectroscopy
Julie T. Millard; Ronald F. Peck; Tina M. Beachy; Victoria L. Hepburn – Journal of Chemical Education, 2023
An experiment for the upper-level biochemistry laboratory is described in which students isolate a wild yeast from environmental sources and characterize the strain for its potential in the brewing industry. In addition to providing valuable experience in important biochemical techniques, this study also illustrates key principles of…
Descriptors: Science Experiments, Laboratory Experiments, Biochemistry, Science Education
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Dean J. Campbell; Thomas S. Kuntzleman; Kayla Lippincott; Abe Yassin; Khitab Dar; Q. Ott – Journal of Chemical Education, 2023
The relationship between surface area and dynamics of processes can be demonstrated by adding iron at room temperature to liquid nitrogen. The rate at which the liquid nitrogen boils to produce gas is related to the surface area of the iron. Adding iron in the form of consistent units that have measurable sizes can be readily connected to…
Descriptors: Metallurgy, Mathematical Concepts, Science Education, Scientific Concepts
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Ratanavis, Amarin – Physics Education, 2022
A single-slit diffraction experiment in an introductory physics laboratory is generally comprised of a rectangular slit and a laser source. The laser beam is sent to the slit producing the well-known diffraction pattern on the screen. This paper proposes a simple modification of the single-slit diffraction experiment to increase student attention…
Descriptors: Science Instruction, Science Laboratories, Physics, Lasers
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Pérez, Juana M.; Ruiz, Cristina; Fernández, Ignacio – Journal of Chemical Education, 2022
NMR spectroscopy is a powerful spectroscopic tool that not only allows the determination of structures after synthesis, as usually explained to students of Organic Chemistry, but also is useful in many other fields such as medicine imaging, real-time industrial processes, material sciences, or metabolomics. In this experiment, students performed a…
Descriptors: Science Instruction, Organic Chemistry, Spectroscopy, Science Experiments
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Mayer, V. V.; Varaksina, E. I. – Physics Education, 2022
We propose a laboratory experiment on the quantitative study of the normal dispersion of light. A triangular isosceles prism made of flint glass TF3 is used as the object of study, and we describe a simple and affordable device for observing and photographing the dispersion spectrum on a smartphone. A possibility of the quantitative investigation…
Descriptors: Light, Physics, Science Experiments, Science Instruction
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Cross, Rod – Physics Education, 2022
A 2.7 m long stringless pendulum was set up to measure the coefficient of rolling friction of various balls, at higher rolling speeds than usually observed with a short stringless pendulum. The arrangement is easy to set up and makes an impressive classroom demonstration as well as an interesting laboratory experiment.
Descriptors: Physics, Science Instruction, Motion, Scientific Concepts
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Louise Castro de Jesus; Sophia Lincoln Cardoso de Azevedo; Rafaela Moraes Pereira de Sousa; Ana Beatriz Matos; Salim Kanaan; José Carlos Pelielo de Mattos; Lidia Maria Amorim – Journal of Biological Education, 2025
Isoenzymes are variant forms of the same enzyme activity that exhibits different tissue distribution. When cells are damaged, intracellular content leaks into the blood stream, making them potential biochemical markers. Undergraduate health sciences students are expected to interpret laboratory findings of serum levels of biochemical markers and…
Descriptors: Science Laboratories, Biochemistry, Health Sciences, Allied Health Occupations Education
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Mahsa Parvizian; Julia Bechter; Jan Huber; Noura Chettata; Jonathan De Roo – Journal of Chemical Education, 2023
Quantum dots are colloidal semiconductor nanocrystals that display size-dependent electronic and optical properties. These materials are a visual demonstration of a quantum-mechanical effect. Here we present a laboratory exercise for undergraduate/Bachelor students as an introduction to colloidal nanocrystals and quantum dots. The students…
Descriptors: Science Instruction, Quantum Mechanics, Science Laboratories, Undergraduate Students
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Alexander J. Wright; Dave Colclough; Hazel Harris; Stefano C. G. Biagini – Journal of Chemical Education, 2023
In this paper, we present a concise and technique-heavy route to the synthesis of dimedone for a second-year organic chemistry curriculum. Our preparation of dimedone guides students through a Michael addition followed by a Dieckmann cyclization, basic ester hydrolysis, and thermal decarboxylation, while allowing time for mechanistic discussion…
Descriptors: Science Instruction, Science Laboratories, Organic Chemistry, Undergraduate Study
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Nicola´s Andre´s Saffioti; Carla Angelani; Jose´ Mari´a Delfino; Silvia Ferna´ndez Villamil; Gabriela Elena Go´mez; Irene Mangialavori; Mari´a Florencia Pignataro; Pablo Julio Schwarzbaum – Journal of Chemical Education, 2023
Metabolic Control Analysis (MCA) is a systems biology approach that measures the control of a metabolic step on the overall flux of a metabolic pathway. In undergraduate courses in biochemistry, learning of MCA can be encouraged by experimental activities demonstrating practical applications of the MCA theory. In this work, we present a laboratory…
Descriptors: Biochemistry, Metabolism, College Science, Undergraduate Students
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A. M. Ranjika P. Bopegedera – Journal of Chemical Education, 2023
Calorimetry is a central concept in the first semester general chemistry curriculum, and constant pressure (coffee-cup) calorimetry is a common experiment in the laboratory. However, constant volume (bomb) calorimetry is traditionally reserved for the physical chemistry laboratory. This article describes the advantages of incorporating bomb…
Descriptors: Chemistry, Science Instruction, Science Experiments, Laboratory Experiments
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Zydrick L. Avelino – Journal of Biological Education Indonesia (Jurnal Pendidikan Biologi Indonesia), 2025
The study focused on the development of a website that can be used in various fields of science in Junior High School. Particularly, topics that were utilized as part of the re-search report include chromosomes, DNA, and genes for grade 9 learners. This exploratory case study explored learners' engagement and performance on a developed virtual…
Descriptors: Foreign Countries, Web Sites, Science Instruction, Grade 9
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