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Direct linkKaur, Jasjeet; Sodhi, Gurvinder S. – Science Activities: Projects and Curriculum Ideas in STEM Classrooms, 2023
It may be asserted that there is no more effective deterrent to crime than the certainty of detection. Equally true is that there is no surer way to establishing identity than by fingerprints. The detection of fingerprints at the scene of crime is therefore one of the most powerful tools available in casework investigations. However, if the crime…
Descriptors: Crime, Evidence, Law Enforcement, Water
Siddiqui, Khawar S.; Poljak, Anne; Ertan, Haluk; Bridge, Wallace – Biochemistry and Molecular Biology Education, 2022
Determination of enzyme activity is crucial for discovery, research, and development in life sciences. The activity of enzymes is routinely determined using spectrophotometric assays that measure rates of substrate consumption or product formation. Though colorimetric-based detection systems are simple, rapid, and economical to perform, the…
Descriptors: Biochemistry, Biological Sciences, College Science, Heat
Beatriz Carrasquer-Álvarez; Adrián Ponz-Miranda – Journal of Biological Education, 2024
Research into seed germination classroom activities has been common in the last few decades. Didactic proposals have generally focused on the implementation of guided activities in a specific educational stage and context, and an evaluation of the results. However, it is not evident that students approach seed and germination concepts with a…
Descriptors: Foreign Countries, Preservice Teachers, Elementary School Students, Plants (Botany)
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
Lunelli, Bruno; Baroncini, Massimo – Journal of Chemical Education, 2020
The design and operation of an inverted cone, scalable vapor condenser, drawing cooling air from beyond the boundary layer and optionally working as a part of a gastight setup, are described and discussed. Besides its main use as a reflux condenser, it can also be used in one-plate distillations.
Descriptors: Chemistry, Science Activities, Laboratory Experiments, Laboratory Equipment
Maggie Ludwig; Joseph K. West – Journal of Chemical Education, 2023
A straightforward protocol for the preparation of the colorful and air-stable diphenyl ditelluride is described. In one laboratory session, students isolate their product and characterize it via melting point determination, mass spectrometry, and NMR spectroscopy ([superscript 1]H, [superscript 13]C{[superscript 1]H}, and [superscript…
Descriptors: Chemistry, Science Instruction, Inorganic Chemistry, Organic Chemistry
Erin M. Ball; Robin A. Costello; Cissy J. Ballen; Rita M. Graze; Eric W. Burkholder – CBE - Life Sciences Education, 2024
Racial biases, which harm marginalized and excluded communities, may be combatted by clarifying misconceptions about race during biology lessons. We developed a human genetics laboratory activity that challenges the misconception that race is biological (biological essentialism). We assessed the relationship between this activity and student…
Descriptors: Race, Genetics, Misconceptions, Undergraduate Students
Zi-Ning Huang; Hsiang-Wei Chen; Chiu-Lin Lai – Journal of Science Education and Technology, 2024
This study explored the impact of interactive e-books on the viewing behaviors of children in science demonstrations at museums. To conduct this study, an interactive e-book on a pendulum experiment was developed and integrated into a physical science demonstration at a museum. Two scientific demonstrations were conducted in this study. The first…
Descriptors: Science Education, Child Behavior, Observation, Attention
Download full textMelek Merve Yilmaz; Asli Bekirler; Ayperi Dikici Sigirtmac – ECNU Review of Education, 2024
Purpose: The aim of this research is to determine the impact of hands-on science activities on preschool children's motivation for science. Design/Approach/Methods: The study group of the research, in which the quasi-experimental design with pretest-posttest control group was used, consists of 25 children aged 60-72 months who are continuing their…
Descriptors: Science Instruction, Science Activities, Hands on Science, Preschool Education
Dallal, Tamar A.; Miller, Jacob M.; Michelle Matten,; Schur, Ezra; Sears, Allen J.; Carr, Clarissa; Rosenberg, Jacob; Unterman, Nathan A.; Valsamis, Anthony; Adams, Mark – Physics Teacher, 2022
During the August 21, 2017, solar eclipse, high school students measured secondary cosmic ray flux using QuarkNet detectors. These students conducted experiments examining cosmic ray flux, shower, speed of muons, and muon lifetime using QuarkNet cosmic ray muon detectors (CRMDs). These detectors measure muon flux of momenta greater than ~2 GeV, a…
Descriptors: Astronomy, Measurement Equipment, Secondary School Science, High School Students
Bradley J. Morris; Jacob Cason; Katie Asaro; Yin Zhang; Michelle Rivers; Whitney Owens; John Dunlosky – International Journal of Science Education, 2025
Understanding experimental design (e.g. control of variable strategy or CVS) is foundational for scientific reasoning. Previous research has demonstrated that demonstrations with cognitive conflict (e.g. asking students to evaluate and explain different experimental designs) are effective in promoting children's scientific reasoning, however, the…
Descriptors: Science Education, Informal Education, Intervention, Foods Instruction
Keira D. Naff; Jeri L. Tyler; Dima H. Hamza; Jonathan D. White – Journal of Chemical Education, 2023
Structure--activity relationships are foundational concepts in biochemistry and drug design. Despite their importance, it can be difficult to create and execute laboratory activities that allow students to directly observe the interactions between small-molecule drugs and their biomolecular targets. Here, we report an activity that investigates…
Descriptors: Genetics, Undergraduate Students, Undergraduate Study, College Science
Dounay, Amy B.; O'Donnell, Martin J.; Samaritoni, J. Geno; Popiolek, Lukasz; Schirch, Douglas; Biernasiuk, Anna; Malm, Anna; Lamb, Isaac W.; Mudrack, Kristen; Rivera, Daniel G.; Ojeda, Gerardo M.; Scott, William L. – Journal of Chemical Education, 2019
An experiment for the synthesis of N-acyl derivatives of natural amino acids has been developed as part of the Distributed Drug Discovery (D3) program. Students use solid-phase synthesis techniques to complete a three-step, combinatorial synthesis of six products, which are analyzed using LC-MS and NMR spectroscopy. This protocol is suitable for…
Descriptors: Organic Chemistry, Laboratory Experiments, Science Experiments, Pharmacology
Cybulskis, Viktor J.; Gawecki, Piotr; Zvinevich, Yury; Gounder, Rajamani; Ribeiro, Fabio H. – Journal of Chemical Education, 2021
A versatile and portable apparatus was developed to demonstrate exciting visual displays of catalytic phenomena that introduce basic concepts in catalysis, renewable energy, and chemical safety, in order to pique scientific curiosity in a variety of audiences including middle and high school students, undergraduate and graduate students, and the…
Descriptors: Science Instruction, Chemistry, Scientific Concepts, Concept Formation
Shardula Gawankar; Susan J. Masten – Journal of Chemical Education, 2023
A laboratory experiment was designed and implemented in a STEM teaching laboratory at Michigan State University to engage students in an activity that not only introduced an innovative nitrate detection technique but also addressed one of the negative impacts of climate change, that is, the eutrophication of water bodies. The adverse effects of…
Descriptors: Laboratory Experiments, STEM Education, Science Activities, Climate
