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Katerina Salta; Elpida Ntalakou; Zois Tsiortos – Journal of Chemical Education, 2022
The possibility of conducting laboratory experiments at home without using commercially available kits, which might also be overly expensive, seems to be a suitable approach for a distance chemistry laboratory. Thus, several hands-on experiments with household supplies have been developed aiming at fostering students' laboratory competencies, as…
Descriptors: Hands on Science, Laboratory Experiments, Science Experiments, Family Environment
Agustian, Hendra Y.; Finne, Laura Teinholt; Jørgensen, Jonas Tarp; Pedersen, Maja Ingerslev; Christiansen, Frederik Voetmann; Gammelgaard, Bente; Nielsen, Jan Alexis – Review of Education, 2022
Laboratory work has been a common element of science courses at university level for around two centuries, but its practice has been criticised by scholars in the field and related stakeholders. Mainly on a rationale of financial justification and educational efficacy, more evidence for learning has been called for. The aims of this systematic…
Descriptors: Chemistry, Science Instruction, Science Laboratories, College Science
Huanyu Ren; Jiajun Zhang; Liqi Peng; Huihui Li; Zhi Su – Journal of Chemical Education, 2023
This work presents a homemade multirole 3D-printed modular spectrometer(MPMS), which can be easily assembled like bricks and expanded with several modules to measure different types of spectra, such as UV-vis absorption, fluorescence emission, flame emission/absorption, glow discharge, and even Raman spectra. The spectrometer is designed to be…
Descriptors: Printing, Computer Peripherals, Technology Uses in Education, Spectroscopy
Martin Schwichow; Anastasios Zoupidis – Journal of Research in Science Teaching, 2024
Floating and sinking (FS) is a key topic in science education, both at primary and secondary levels. The interpretation of FS phenomena, however, is challenging due to the difficulty of the scientific concepts and explanatory models involved (e.g., density, buoyancy), along with students' everyday experiences, which conflict with scientific…
Descriptors: Scientific Concepts, Science Education, Meta Analysis, Effect Size
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
Mohan, Ram S.; Mejia, Maria P. – Journal of Chemical Education, 2020
Due to a growing awareness of environmental issues, green chemistry concepts are increasingly being incorporated into the undergraduate organic chemistry lecture and laboratory component. This minireview summarizes environmentally friendly organic chemistry experiments suitable for undergraduate laboratories. Whenever feasible, LD[subscript 50]…
Descriptors: Sustainability, Organic Chemistry, Science Experiments, Undergraduate Students
Nicol, Christian Bob – EURASIA Journal of Mathematics, Science and Technology Education, 2021
Despite efforts to incorporate inquiry-based instruction into various science curricular, its adoption has been slow-paced. This has raised many concerns about challenges in the enactment of inquiry-based instruction. Therefore, this article seeks to provide an understanding of the challenges by exploring the perspectives of teachers in the…
Descriptors: Science Instruction, Inquiry, Teaching Methods, Barriers
Thurtle-Schmidt, Deborah M.; Lo, Te-Wen – Biochemistry and Molecular Biology Education, 2018
Disrupting a gene to determine its effect on an organism's phenotype is an indispensable tool in molecular biology. Such techniques are critical for understanding how a gene product contributes to the development and cellular identity of organisms. The explosion of genomic sequencing technologies combined with recent advances in genome-editing…
Descriptors: Science Instruction, Molecular Biology, Genetics, Undergraduate Study
Balukovic, Jasmina; Slisko, Josip; Cruz, Adrián Corona – EURASIA Journal of Mathematics, Science & Technology Education, 2017
Different "thought experiments" dominate teaching approaches to weightlessness, reducing students' opportunities for active physics learning, which should include observations, descriptions, explanations and predictions of real phenomena. Besides the controversy related to conceptual definitions of weight and weightlessness, we report…
Descriptors: Teaching Methods, Physics, Science Instruction, Scientific Concepts
Goes, Luciane F.; Nogueira, Keysy S. C.; Fernandez, Carmen – Problems of Education in the 21st Century, 2020
Redox reactions are considered one of the most difficult chemistry subjects to teach and learn. However, this is an important content that permeates several topics and includes many everyday life-related phenomena. To understand the teaching and learning difficulties of the 'redox reactions' topic, a systematic literature review was conducted.…
Descriptors: Science Instruction, Chemistry, Scientific Concepts, Concept Formation
Frontali, Clara – Physics Education, 2014
Difficulties encountered by teachers in giving a definition of the term "energy", and by students in grasping its actual meaning, reflect the lengthy process through which the concept eventually came to maturity around 1850. Tracing the history of this process illuminates the different aspects covered by the term and shows the important…
Descriptors: Energy, Physics, Science Instruction, Definitions
Schwichow, Martin; Zimmerman, Corinne; Croker, Steve; Härtig, Hendrik – Journal of Research in Science Teaching, 2016
The ability to design and interpret controlled experiments is an important scientific process skill and a common objective of science standards. Numerous intervention studies have investigated how the control-of-variables-strategy (CVS) can be introduced to students. However, a meta-analysis of 72 intervention studies found that the opportunity to…
Descriptors: Science Experiments, Scientific Methodology, Teaching Methods, Science Process Skills
Andraos, John; Sayed, Murtuzaali – Journal of Chemical Education, 2007
A general analysis of reaction mass efficiency and raw material cost is developed using an Excel spread sheet format which can be applied to any chemical transformation. These new methods can be easily incorporated into standard laboratory exercises.
Descriptors: Organic Chemistry, Science Instruction, College Science, Undergraduate Study
Meany, J. E. – Journal of Chemical Education, 2007
Many carbonyl substrates of oxidoreductase enzymes undergo hydration and enolization so that these substrate systems are partitioned between keto, hydrated (gem-diol), and enol forms in aqueous solution. Some oxidoreductase enzymes are subject to inhibition by high concentrations of substrate. For such enzymes, two questions arise pertaining to…
Descriptors: Biochemistry, Science Experiments, Scientific Concepts, Scientific Research

Leenson, I. A. – Journal of Chemical Education, 2004
On equilibrium properties of aqueous solutions of sulfuric acid, Julius Thomsen has marked that the heat evolved on diluting liquid sulfuric acid with water is a continuous function of the water used, and excluded absolutely the acceptance of definite hydrates as existing in the solution. Information about thermochemical measurement, a discussion…
Descriptors: Chemistry, Water, Heat, Science Experiments
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