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Theilmann, Florian – Physics Education, 2022
Ever since Newton's groundbreaking work on the composed nature of light, additive colour mixing (and its laws) are subject to the interest of physicists as well as other sciences. In this paper, we present a setup for simple lab or home experiments on additive colour mixing and the laws of colour mixing. Students use the screen of a laptop or…
Descriptors: Science Instruction, Science Experiments, Hands on Science, Physics
da Silva, Rodrigo Sens; Borges, Endler Marcel – Journal of Chemical Education, 2019
Here, students determine aspirin (acetylsalicylic acid) mass in pharmaceutical tablets using a colorimetric method. Aspirin, salicylate, and salicylic acid do not absorb visible light. Thus, in alkaline medium, acetylsalicylic acid was hydrolyzed to salicylate; then, it was reacted with an acidic Fe(III) solution, and a violet complex was formed.…
Descriptors: Spreadsheets, Drug Therapy, Light, Chemistry
Geiger Mode Single Photon Counting: A Laboratory Experiment Exploring Delayed Fluorescence in Plants
Christopher W. Schruder; Christopher J. Barrett; William J. Pietro; Ozzy Mermut – Journal of Chemical Education, 2023
The time-resolved detection of very low intensity light emission has become an essential capability in many areas of science including molecular biology, fluorimetry, DNA sequencing, virus detection, nanoparticle research, and optical materials development. Among the most basic techniques for the detection of rapidly fluctuating low-intensity…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Physics
Mary Sever; Mark A. Young – Journal of Chemical Education, 2023
A laboratory experiment that exposes students to fundamental concepts in kinetics and statistical thermodynamics to study systems of great current interest in nanotechnology by employing a foundational technique in physical chemistry is described. A modified commercial flash photolysis spectrometer was used to study photoinduced isomerization…
Descriptors: Laboratory Experiments, Scientific Concepts, Thermodynamics, Science Education
Yurumezoglu, Kemal – Physics Education, 2020
In this article, a consecutive series of four hands-on experiments are recommended to teach the colors of paint/pigment and their mixtures. These activities, which are effective in learning about how to make a simple observation and help to build argument-based knowledge about colors, offer an integrated and innovative way of teaching colors of…
Descriptors: Physics, Hands on Science, Educational Innovation, Light
Dangkulwanich, Manchuta; Kongnithigarn, Kaness; Aurnoppakhun, Nattapat – Journal of Chemical Education, 2018
Routinely used in quantitative determination of various analytes, UV-vis spectroscopy is commonly taught in undergraduate chemistry laboratory courses. Because the technique measures the absorbance of light through the samples, losses from reflection and scattering by large molecules interfere with the measurement. To emphasize the importance of…
Descriptors: Telecommunications, Handheld Devices, Educational Technology, Technology Uses in Education
Vinnacombe-Willson, Gail A.; Chiang, Naihao; Weiss, Paul S.; Tolbert, Sarah H.; Scarabelli, Leonardo – Journal of Chemical Education, 2021
Gold nanoparticles are exciting materials in nanotechnology and nanoscience research and are being applied across a wide range of fields including imaging, chemical sensing, energy storage, and cancer therapies. In this experiment, students will synthesize two sizes of gold nanospheres (~20 and ~100 nm) and will create gold nanostars utilizing a…
Descriptors: Science Instruction, Chemistry, Hands on Science, Science Experiments
Carmel, Justin H.; Ward, Joseph S.; Cooper, Melanie M. – Journal of Chemical Education, 2017
One of the most mystifying products on the market for people at any age is the glow stick: a plastic tube that, when snapped, creates a flood of bright, brilliantly colored light without the use of electricity or significant production of heat. In this case, the chemiluminescence reaction also provides an exciting phenomenon through which we can…
Descriptors: Science Instruction, Cooperative Learning, Science Laboratories, College Science
Susac, Ana; Planinic, Maja; Bubic, Andreja; Jelicic, Katarina; Ivanjek, Lana; Cvenic, Karolina Matejak; Palmovic, Marijan – Physical Review Physics Education Research, 2021
Recognition of interference and diffraction patterns is a difficult task for both high-school and university students. Many students fail to observe important features of particular patterns and identify the differences among similar patterns. In this study, we investigated if performing students' investigative experiments can help high-school…
Descriptors: Investigations, Experiments, Hands on Science, Optics
Kuntzleman, Thomas S.; Bunker, Kasey R.; Bartlett, Ashlee A. – Journal of Chemical Education, 2019
An experiment is described that uses easily obtained materials (glow sticks, chalk, and acetone or alcohol) to separate the dyes contained in glow sticks that actively emit chemiluminescent light. The experiment is very easy to carry out, making it amenable for students to perform in laboratory or outreach settings. The separation occurs fast…
Descriptors: Chemistry, Science Instruction, Light, Laboratory Experiments
Ekin, Sabit; O'Hara, John F.; Turgut, Emrah; Colston, Nicole; Young, Jeffrey L. – IEEE Transactions on Education, 2021
Contribution: A do-it-yourself (DIY) light wave sensing (LWS) and communication project was developed to generate interest and clarify basic electromagnetic (EM) and wireless sensing/communication concepts among students at different education levels from middle school to undergraduate. This article demonstrates the nature of the project and its…
Descriptors: Science Education, Science Instruction, Scientific Concepts, Hands on Science
Putri, Liandha Arieska; Permanasari, Anna; Winarno, Nanang; Ahmad, Nur Jahan – Journal of Science Learning, 2021
Laboratory activity is closely related and yet is essential in the process of science teaching-learning. The hands-on laboratory experiment is the one normally used in school. Particularly with the state of online schooling, it is quite challenging to perform a hands-on laboratory activity. The combination of inquiry-based learning with virtual…
Descriptors: Scientific Literacy, Virtual Classrooms, Electronic Learning, Active Learning
Wood, Benjamin K.; Blevins, Benjamin K. – Physics Education, 2019
Practical skills in science education, defined as those developed through the observation, demonstration, manipulation, and application of scientific principles, valued in both academia and industry, feature conspicuously in curriculums the world over. Efficiently imparting such skills to students necessitates access to scientific equipment of…
Descriptors: Science Process Skills, Science Experiments, Light, Physics
Krawczyk, Tomasz; Slupska, Roksana; Baj, Stefan – Journal of Chemical Education, 2015
This work describes a single-session laboratory experiment devoted to teaching the principles of factorial experimental design. Students undertook the rational optimization of a luminol oxidation reaction, using a two-level experiment that aimed to create a long-lasting bright emission. During the session students used only simple glassware and…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
Enciso, P.; Luzuriaga, L.; Batasini, S. – Journal of Chemical Education, 2018
This laboratory practice is intended for undergraduate students of chemistry, physics, biology, and engineering, to illustrate the simple concepts behind dye-sensitized solar cells (DSSCs), and how basic chemistry can be translated into a practical application through the use of microcontrollers. Unlike commercial counterparts, one of the main…
Descriptors: Science Instruction, Science Laboratories, College Science, Undergraduate Students
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