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Peer reviewed
Direct linkFisher, Adam J.; Keeley, Monica M.; Lane, Jeremy M.; Furlan, Ping Y. – Journal of Chemical Education, 2019
We describe a 2 h general-chemistry experiment that introduces college students not only to the concepts, synthesis, and applications of nanomaterials at an early stage but also the use of a spectrophotometer for quantification and unknown determination based on Beer's Law. The procedure involves students (1) preparing a nanocomposite by…
Descriptors: Spectroscopy, Water Pollution, Chemistry, Science Experiments
Yuan, Min; Tang, Qun; Lu, Ying; Zhang, Zhong; Li, Xiao-Hui; Liu, Shu-Mei; Sun, Xiu-Wei; Liu, Shu-Xia – Journal of Chemical Education, 2019
An integrated and research-focused laboratory experiment is developed to introduce the "antenna effect" occurring in luminescent lanthanide complexes to students. Students synthesized a lanthanide metal-organic framework (Ln-MOF) with the formula of [Eu(BTPCA)(H O)]·2DMF·nH[Subscript 2]O (Eu-BTPCA, H[subscript 3]BTPCA =…
Descriptors: Undergraduate Students, Laboratory Experiments, Science Experiments, Chemistry
Shimonovich, Michal; Pearce, Anna; Thomson, Hilary; Katikireddi, Srinivasa Vittal – Research Synthesis Methods, 2022
In fields (such as population health) where randomised trials are often lacking, systematic reviews (SRs) can harness diversity in study design, settings and populations to assess the evidence for a putative causal relationship. SRs may incorporate causal assessment approaches (CAAs), sometimes called 'causal reviews', but there is currently no…
Descriptors: Evidence, Synthesis, Causal Models, Public Health
Ristanto, Sigit; Nugroho, Waskito; Sulistya, Eko; Suparta, Gede B. – Physics Education, 2022
We have developed a stereo vision system for observing real objects for experimental physics demonstration. The stereo vision observes objects from two different points of view. An observer can identify the distance and velocity of an object based on at least two different points of view. This paper demonstrates our comprehensive observation in a…
Descriptors: Science Instruction, Physics, Scientific Concepts, Motion
Sousa, Ângela; Almeida, Ana Margarida; Valente, Joana; Queiroz, João; Sousa, Fani – Journal of Chemical Education, 2022
Biopharmaceuticals are gaining high relevance in the pharmaceutical industry and market, due to their specific design for many therapeutic conditions and ability to restore biological functions. As a matter of fact, gene therapy products have been studied and developed in the past several years, and more recently, they arouse real interest as…
Descriptors: Hands on Science, Science Experiments, Pharmaceutical Education, Chemistry
Kim, Soyeon; Lee, Soyeon; Moon, Su Jin; Kim, Kyuhwan; Kim, Jung Bog – Physics Education, 2022
Since the vibration of a single pendulum is very periodic, measuring its period is a very interesting topic. When students are asked to measure the period of a single vibration, they start and stop the stopwatch when the pendulum reaches the top point as a reference point. In this paper, we try to show that the error can be reduced more by using…
Descriptors: Science Instruction, Motion, Measurement Techniques, Error of Measurement
Hardy, Lisa; Dixon, Colin; Van Doren, Seth; Hsi, Sherry – Science Teacher, 2022
In science classrooms, students usually see and work with data that's intended to tell them right away about the natural world. Students then often treat the data we provide to them as factual, rather than as a source of evidence (Duschl 2008; Sandoval and Millwood 2005; Berland and Reiser 2009; McNeill and Berland 2017; Hancock, Kaput, and…
Descriptors: Data Collection, Data Analysis, Science Experiments, High School Students
Rojas, Roberto – Physics Teacher, 2022
In one of the Faraday's experiments an electric current is induced in a conducting loop when a magnet in front of it moves towards or away from the loop. While the direction of circulation of the electric current in the loop has only two options, it depends on three experimental conditions that generate eight cases. Even though the Faraday law or…
Descriptors: Energy, Magnets, Science Experiments, Scientific Principles
Faville, Scott C.; Harris-Hamdscomb, Kes; Harker, Owain; Mattison, Stephanie; Tamorite, Hajie; Bristowe, Joshua; Daly, Daniel; Ege, Raissa; He, Haoyuan; Jones, Julian; McCorkindale, Abby; Mei, Kerry; Monson, Ashleigh; Moree, Lana; Perkovic, Finley; Rickerby, Georgia; Robinson, Jack; Rudkin, Felix; Whibley, Luke; Worthington, Rebecca; Ennis, Courtney; de la Harpe, Sara; Brind, Thomasin; Hopkins, Andrew; Winefield, Kaleb; Hendrickx, Sarah; Caljon, Guy; Perry, Benjamin; Vernall, Andrea J. – Journal of Chemical Education, 2022
An undergraduate laboratory was developed as part of the Drugs for Neglected Diseases "initiative's" Open Synthesis Network. This activity aimed to develop new compounds efficacious against visceral leishmaniasis. Students successfully synthesized, purified, and characterized ten different benzoxazole amides that were sent for biological…
Descriptors: College Science, Undergraduate Students, Laboratory Experiments, Diseases
Tarigan, Hendra Jaya – Physics Teacher, 2022
We describe here a low-cost experiment for introductory physics students where they compare the physical properties of aluminum and steel by means of cantilever oscillations. This, in turn, allows the students to improve their physical intuition about these materials. Further, the students can apply their physics and mathematics knowledge and…
Descriptors: Acoustics, Physics, Science Instruction, Teaching Methods
Oss, Stefano – Physics Education, 2022
We propose an experiment in which the sound of a drumroll is recorded and analysed according to a simple mechanical model in which the inelastic restitution coefficient of the collision between the stick and drum surface, as well as the ongoing kinematics of the drumstick, are considered. The agreement shows that this model is well suited for…
Descriptors: Science Experiments, Musical Instruments, Acoustics, Scientific Concepts
Bhattacharya, Ahana; Chattopadhyay, K. N.; Adhikary, Chandan – Physics Education, 2022
A cost-effective method has been developed with utmost efficiency for the determination of density of a liquid. The experimental setup for this purpose is a Polyvinyl chloride (PVC) cylinder fitted with an overflow spout, a volume measuring cylinder, a wooden block along with a hook and a known mass taken from scientific weight box. For this…
Descriptors: Physics, Scientific Concepts, Water, Science Equipment
Williams, Hollis – Physics Teacher, 2022
It is well known that Newton's work on mechanics depended in a crucial way on the previous observations of Galileo. The key insight of Galileo was that one can analyze the motion of bodies using experiments and mathematical equations. One experimental observation that roughly emerges from this work in modern terms is that two objects of different…
Descriptors: Scientific Principles, Mechanics (Physics), Motion, Equations (Mathematics)
Wildan, Ardan; Yau, Chin Doong; Wijesinghe, Chamaka; Xiao, Kevin; Ng, Tuck Wah – Physics Teacher, 2022
The Van de Graaff (VDG) generator is ubiquitous in the physics laboratory, but the high-voltage discharges that emanate from it can cause user discomfort or damage to nearby electronics during experimentation. In this work, an augmented reality (AR) tool is developed to help students conduct the experiment safely. More specifically, it allows them…
Descriptors: Science Instruction, Science Experiments, Laboratory Equipment, Computer Simulation
Moya, Antonio Angel – Physics Teacher, 2022
Resistor--capacitor (RC) circuit labs help students, but most courses don't include them because of complications and cost. This work presents an easy and inexpensive Arduino-based lab on the charge and energy transfer between two capacitors with different values of the initial electric charge when they are connected through a resistor. Capacitors…
Descriptors: Physics, Science Instruction, Teaching Methods, Energy
