NotesFAQContact Us
Collection
Advanced
Search Tips
Audience
Teachers15
Students3
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Showing 1 to 15 of 112 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Ana Sofi´a Varela; Alfonso Garci´a-Ma´rquez – Journal of Chemical Education, 2023
This laboratory experiment consists of the synthesis of two series of alkaline-earth titanates (calcium-strontium and strontium-barium)to corroborate Vegard's law by obtaining their X-ray diffraction patterns and plotting the lattice parameter versus mole fraction of both cations. This experiment allows students to understand the key concepts in…
Descriptors: Chemistry, Scientific Principles, Laboratory Experiments, Scientific Concepts
Peer reviewed Peer reviewed
Direct linkDirect link
McMillin, David R. – Journal of Chemical Education, 2021
Atoms may repel or attract each other, but bound systems get virtually all of the attention in the classroom. To address the imbalance, instructors can explore the basis of repulsion in a few simple systems and highlight the important role played by the Pauli principle. A good example is the first triplet excited state of H[subscript 2] wherein…
Descriptors: Nuclear Physics, Molecular Structure, Chemistry, Scientific Concepts
Peer reviewed Peer reviewed
Direct linkDirect link
Kallepalli, Samaya; Johnson, Lydia; Mattson, Bruce – Journal of Chemical Education, 2021
Thomas Graham discovered the law that bears his name while studying gas diffusion into air and other gases. He also found that the same relationship held with gas effusion, the movement of gases through a pinhole into a vacuum. Modern understanding of diffusion and effusion is based on kinetic-molecular theory, and it is generally accepted that…
Descriptors: Chemistry, Scientific Concepts, Scientific Principles, Kinetics
Peer reviewed Peer reviewed
Direct linkDirect link
Di Vincenzo, Antonella; Floriano, Michele A. – Journal of Chemical Education, 2020
An application for visualizing the dynamic properties of an equimolar binary mixture of isotropic reactive particles is presented. By introducing a user selectable choice for the activation energy, the application is useful to demonstrate qualitatively that the reaction rate depends on the above choice and on temperature. The application is based…
Descriptors: High School Students, Undergraduate Students, Molecular Structure, Chemistry
Peer reviewed Peer reviewed
Direct linkDirect link
Di Vincenzo, Antonella; Floriano, Michele A. – Journal of Chemical Education, 2019
An application for visualizing the aggregation of structureless atoms is presented. The application allows us to demonstrate on a qualitative basis, as well as by quantitatively monitoring the aggregate surface/volume ratio, that the enhanced reactivity of nanoparticles can be connected with their large specific surface. It is suggested that,…
Descriptors: Chemistry, Science Instruction, Molecular Structure, Scientific Principles
Peer reviewed Peer reviewed
PDF on ERIC Download full text
Das, Arijit – Journal of Education and Learning (EduLearn), 2020
In previous published articles, formulae-based mnemonics by counting the total number of s bonds with a lone pair of electrons (LP), a localized negative charge (LNC), or a localized lone pair of electrons (LLP) and subtracting one (01) from this total value (TSLP, TSLNC, or TSLLP) to predict the power of the hybridization state of simple…
Descriptors: Mnemonics, Scientific Principles, Molecular Structure, Comparative Analysis
Peer reviewed Peer reviewed
Direct linkDirect link
Talbot, Christopher – School Science Review, 2017
This article aims to introduce the lanthanides (also known as the lanthanoids) to teachers and their students. The lanthanides are not mere "footnotes" at the bottom of the periodic table but make up a group of interesting and unique metallic elements. They and their compounds have widespread technological applications that have become…
Descriptors: Science Instruction, Educational Resources, Scientific Concepts, Scientific Literacy
Peer reviewed Peer reviewed
Direct linkDirect link
Dale, Keith; Dale, Stephen G. – Teaching Science, 2018
The Australian Curriculum (n.d.) describes chemistry as having three interrelated strands, Science Inquiry Skills, Science as a Human Endeavour and Science Understanding. It also states "... the three strands of the Australian Curriculum: Science should be taught in an integrated way". This article will explore a model for integrating…
Descriptors: Foreign Countries, Science Instruction, Secondary School Science, Chemistry
Peer reviewed Peer reviewed
Direct linkDirect link
Goldston, M. Jenice; Pan, Shanlin; Boykin, Karen; Allison, Elizabeth; Wehby, Scott – Science Teacher, 2016
Nanoscience development affects almost every discipline of science, engineering, and technology. Not surprisingly, "the science of small" is also finding its way into science classrooms. In general, "nano" refers to a billionth of a meter--about 1/50,000 the width of a hair follicle. The term "nanoparticle" usually…
Descriptors: Molecular Structure, Technology, Chemistry, Science Instruction
Peer reviewed Peer reviewed
Direct linkDirect link
Askew, Jennifer; Gray, Ron – Science Teacher, 2016
British scientist John Dalton (1766-1844), French scientist Joseph Louis Gay-Lussac (1778-1850), and Italian scientist Amedeo Avogadro (1776-1856) are familiar to many chemistry students. Such students may understand the importance of Dalton's atomic theory, model how Gay-Lussac's law relates the pressure and the temperature of a gas, and use…
Descriptors: Science Instruction, Chemistry, Molecular Structure, Scientific Concepts
Peer reviewed Peer reviewed
Direct linkDirect link
Sweet, Chelsea; Akinfenwa, Oyewumi; Foley, Jonathan J., IV – Journal of Chemical Education, 2018
We present an interactive discovery-based approach to studying the properties of real gases using simple, yet realistic, molecular dynamics software. Use of this approach opens up a variety of opportunities for students to interact with the behaviors and underlying theories of real gases. Students can visualize gas behavior under a variety of…
Descriptors: Discovery Learning, Molecular Structure, Courseware, Kinetics
Peer reviewed Peer reviewed
Direct linkDirect link
Harakas, George N. – Journal of Chemical Education, 2018
This work describes an effective, low cost method to anodize small aluminum objects. The use of a PVC spacer between the anode and cathode significantly reduces the size of the electrochemical cell and electrolyte required for its operation. Students will explore the physical and chemical properties of aluminum and anodized aluminum. They will…
Descriptors: Chemistry, Metallurgy, Cost Effectiveness, Molecular Structure
Peer reviewed Peer reviewed
Direct linkDirect link
Pollock, David W.; Truong, Giovanna T.; Bonjour, Jessica L.; Frost, John A. – Journal of Chemical Education, 2018
Solubility is frequently introduced at the high school and introductory college levels through the symbolic domain using net ionic equations and solubility product constants. Students may become proficient with spectator ion cancellation and skilled with algorithmic mathematical applications of solubility without obtaining a deeper understanding…
Descriptors: Spectroscopy, Chemistry, Data Collection, Science Experiments
Peer reviewed Peer reviewed
Direct linkDirect link
Meyburg, Jan Philipp; Diesing, Detlef – Journal of Chemical Education, 2017
This article describes the implementation and application of a metal deposition and surface diffusion Monte Carlo simulation in a physical chemistry lab course. Here the self-diffusion of Ag atoms on a Ag(111) surface is modeled and compared to published experimental results. Both the thin-film homoepitaxial growth during adatom deposition onto a…
Descriptors: Monte Carlo Methods, Computer Simulation, Chemistry, Laboratory Experiments
Peer reviewed Peer reviewed
Direct linkDirect link
Stavrou, Dimitris; Michailidi, Emily; Sgouros, Giannis – Chemistry Education Research and Practice, 2018
Introducing Nanoscience and Nanotechnology (NST) topics into school science curricula is considered useful for an in-depth understanding of the content, processes and nature of science and technology, and also for negotiating the social aspects of science. This study examines (a) the development of an inquiry-based Teaching-Learning Sequence (TLS)…
Descriptors: Sequential Learning, Chemistry, Models, Communities of Practice
Previous Page | Next Page »
Pages: 1  |  2  |  3  |  4  |  5  |  6  |  7  |  8