Publication Date
| In 2024 | 0 |
| Since 2023 | 1 |
| Since 2020 (last 5 years) | 10 |
| Since 2015 (last 10 years) | 23 |
| Since 2005 (last 20 years) | 58 |
Descriptor
Source
Author
Publication Type
Education Level
| Higher Education | 25 |
| Postsecondary Education | 17 |
| Secondary Education | 6 |
| High Schools | 5 |
| Middle Schools | 2 |
| Elementary Education | 1 |
| Elementary Secondary Education | 1 |
| Junior High Schools | 1 |
| Preschool Education | 1 |
Audience
| Teachers | 16 |
| Practitioners | 14 |
| Media Staff | 2 |
| Students | 2 |
| Policymakers | 1 |
| Researchers | 1 |
Location
| Australia | 2 |
| Brazil | 2 |
| Canada | 2 |
| United Kingdom | 2 |
| United Kingdom (Scotland) | 2 |
| Africa | 1 |
| California | 1 |
| China | 1 |
| India | 1 |
| Minnesota | 1 |
| Spain | 1 |
| More ▼ | |
Laws, Policies, & Programs
Assessments and Surveys
| Bayley Mental Development… | 1 |
| Bayley Scales of Infant… | 1 |
| Conners Teacher Rating Scale | 1 |
| State Trait Anxiety Inventory | 1 |
What Works Clearinghouse Rating
Peer reviewed
Direct linkLe Gall, Erwan; Pignon, Antoine – Journal of Chemical Education, 2012
This laboratory experiment describes the preparation of a N-protected phenylalanine ethyl ester by a zinc-mediated Mannich-like multicomponent reaction between benzyl bromide, "p"-anisidine, and ethyl glyoxylate. The one-step reaction involves the in situ metallation of benzyl bromide into a benzylzinc reagent and its addition onto imine (Barbier…
Descriptors: Laboratory Experiments, Science Instruction, Science Experiments, College Science
Fabre, Paul-Louis; Reynes, Olivier – Journal of Chemical Education, 2010
In this experiment, the concentrations of copper and zinc in brass are obtained by two methods. This experiment does not require advanced instrumentation, uses inexpensive chemicals, and can be easily carried out during a 3-h upper-level undergraduate laboratory. Pedagogically, the basic concepts of analytical chemistry in solutions, such as pH,…
Descriptors: Science Instruction, Scientific Concepts, Science Laboratories, Science Experiments
Arnold, Randy J.; Arndt, Brett; Blaser, Emilia; Blosser, Chris; Caulton, Dana; Chung, Won Sog; Fiorenza, Garrett; Heath, Wyatt; Jacobs, Alex; Kahng, Eunice; Koh, Eun; Le, Thao; Mandla, Kyle; McCory, Chelsey; Newman, Laura; Pithadia, Amit; Reckelhoff, Anna; Rheinhardt, Joseph; Skljarevski, Sonja; Stuart, Jordyn; Taylor, Cassie; Thomas, Scott; Tse, Kyle; Wall, Rachel; Warkentien, Chad – Journal of Chemical Education, 2011
A multivitamin tablet and liquid are analyzed for the elements calcium, magnesium, iron, zinc, copper, and manganese using atomic absorption spectrometry. Linear calibration and standard addition are used for all elements except calcium, allowing for an estimate of the matrix effects encountered for this complex sample. Sample preparation using…
Descriptors: Chemistry, Spectroscopy, Biochemistry, Nutrition
Schmidt-Rohr, Klaus – Journal of Chemical Education, 2018
Batteries are valued as devices that store chemical energy and convert it into electrical energy. Unfortunately, the standard description of electrochemistry does not explain specifically where or how the energy is stored in a battery; explanations just in terms of electron transfer are easily shown to be at odds with experimental observations.…
Descriptors: Chemistry, Energy, Science Instruction, Scientific Concepts
Thomas, Nicholas C.; Faulk, Stephen – Journal of Chemical Education, 2008
A simple procedure for determining the zinc composition of U.S. pennies is described. The penny zinc core is dissolved in acid and the evolved hydrogen gas is collected by water displacement.
Descriptors: Chemistry, Science Experiments, Scientific Principles, Science Instruction
Malel, Esteban; Shalev, Deborah E. – Journal of Chemical Education, 2013
Iron corrosion is a complex process that occurs when iron is exposed to oxygen and humidity and is exacerbated by the presence of chloride ions. The deterioration of iron structures or other components can be costly to society and is usually evaluated by following the properties of the corroding material. Here, the iron ions released into solution…
Descriptors: Science Instruction, College Science, Undergraduate Study, Hands on Science
Vitz, Ed – Journal of Chemical Education, 2008
This demonstration, if done in the original way, can lead to fires in waste containers (sometimes in the middle of the night after the experiment has been conducted), because pyrophoric zinc is generated by suspending powdered zinc in hot sodium hydroxide. This is avoided by using hot ZnSO[subscript 4].
Descriptors: Inorganic Chemistry, Science Instruction, Laboratory Safety, Science Experiments
Mandali, Swarna L. – Journal of Physical Education, Recreation & Dance (JOPERD), 2011
Good nutrition is important for optimal athletic performance. Adolescent athletes often depend on their coaches for nutritional information on weight management, dietary supplements, and dietary practices. Some dietary practices, such as vegetarianism, have the potential to be harmful to the adolescent athlete if not followed with careful…
Descriptors: Athletes, Athletic Coaches, Nutrition, Dietetics
Kamata, Masahiro; Paku, Miei – Journal of Chemical Education, 2007
Current regulative diodes (CRDs) are applied to develop new educational experiments on Faraday's law by using a zinc-air battery (PR2330) and a resistor to discharge it. The results concluded that the combination of zinc-air batteries and the CRD array is simpler, less expensive, and quantitative and gives accurate data.
Descriptors: Chemistry, Science Experiments, Science Instruction, Equipment
Baker, Mark D.; Baker, A. David – Journal of Chemical Education, 2010
The Madelung constants for binary ionic nanoparticles are determined. The computational method described here sums the Coulombic interactions of each ion in the particle without the use of partial charges commonly used for bulk materials. The results show size-dependent lattice energies. This is a useful concept in teaching how properties such as…
Descriptors: Molecular Structure, Chemistry, Models, Computation
Monk, Catherine; Georgieff, Michael K.; Osterholm, Erin A. – Journal of Child Psychology and Psychiatry, 2013
Background: Accumulating data from animal and human studies indicate that the prenatal environment plays a significant role in shaping children's neurocognitive development. Clinical, epidemiologic, and basic science research suggests that two experiences relatively common in pregnancy--an unhealthy maternal diet and psychosocial…
Descriptors: Mothers, Prenatal Influences, Cognitive Development, Pregnancy
Roy, Ken – Science Scope, 2010
Batteries commonly used in flashlights and other household devices produce hydrogen gas as a product of zinc electrode corrosion. The amount of gas produced is affected by the batteries' design and charge rate. Dangerous levels of hydrogen gas can be released if battery types are mixed, batteries are damaged, batteries are of different ages, or…
Descriptors: Student Behavior, Child Safety, Science Instruction, Laboratory Safety
Yang, Shui-Ping – Journal of Chemical Education, 2007
This article describes an experiment using a novel gasometric assembly to determine the thickness and number of atomic layers of zinc coating on galvanized iron substrates. Students solved this problem through three stages. In the first stage, students were encouraged to find a suitable acidic concentration through the guided-inquiry approach. In…
Descriptors: Problem Solving, Laboratories, Data Processing, Chemistry
Areco, Maria Mar; dos Santos Afonso, Maria; Valdman, Erika – Journal of Chemical Education, 2007
An experiment is conducted to promote biotechnology knowledge that is an emerging technology on cleaning treatment, showing the potential of seaweed to remove heavy-metal ions from solution. The rapid and accurate determination of zinc in aqueous solution by the zincon colorimetric method gives an interesting and simple experiment for any…
Descriptors: Chemistry, Biotechnology, Science Experiments, Pollution
Scassellati, Catia; Bonvicini, Cristian; Faraone, Stephen V.; Gennarelli, Massimo – Journal of the American Academy of Child & Adolescent Psychiatry, 2012
Objective: To determine whether peripheral biochemical markers (biomarkers) might differentiate patients with attention-deficit/hyperactivity disorder (ADHD) from non-ADHD individuals. Method: We conducted a systematic search and a series of meta-analyses of case-control studies comprising studies from 1969 to 2011. Results: We identified 210…
Descriptors: Evidence, Risk, Attention Deficit Hyperactivity Disorder, Patients
