Publication Date
In 2024 | 0 |
Since 2023 | 1 |
Since 2020 (last 5 years) | 43 |
Since 2015 (last 10 years) | 98 |
Since 2005 (last 20 years) | 170 |
Descriptor
Demonstrations (Educational) | 170 |
Chemistry | 148 |
Science Instruction | 133 |
College Science | 70 |
Scientific Concepts | 63 |
Secondary School Science | 45 |
Science Experiments | 41 |
Teaching Methods | 40 |
Hands on Science | 32 |
Foreign Countries | 30 |
Undergraduate Study | 30 |
More ▼ |
Source
Author
Publication Type
Education Level
Higher Education | 91 |
Postsecondary Education | 71 |
Secondary Education | 50 |
High Schools | 42 |
Elementary Education | 11 |
Middle Schools | 11 |
Junior High Schools | 9 |
Elementary Secondary Education | 8 |
Grade 8 | 2 |
Grade 9 | 2 |
Grade 11 | 1 |
More ▼ |
Audience
Teachers | 12 |
Location
United Kingdom | 4 |
Australia | 3 |
China | 3 |
Germany | 3 |
Israel | 2 |
Nigeria | 2 |
South Africa | 2 |
California (Los Angeles) | 1 |
Canada | 1 |
Colombia (Bogota) | 1 |
Florida | 1 |
More ▼ |
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Miyauchi, Takuya; Kamata, Masahiro – Journal of Chemical Education, 2012
An educational demonstration shows the combustion of carbon to carbon dioxide and then the reduction of carbon dioxide to carbon. A melee diamond is the source of the carbon and the reaction is carried out in a closed flask. The demonstration helps students to realize that diamonds are made of carbon and that atoms do not change or vanish in…
Descriptors: Chemistry, Grade 8, Science Instruction, Middle School Students
Kubatova, Alena; Pedersen, Daphne E. – Journal of Chemical Education, 2013
The low interest of the U.S. students in sciences is an ongoing issue. One approach to promote the sciences is outreach activities, often targeted at grades K-12. Yet, a limiting factor in these outreach initiatives is their long-term feasibility, especially from an economic perspective. Another challenge is how to introduce scientific information…
Descriptors: Learner Engagement, Rural Schools, High School Students, Secondary School Science
Dewprashad, Brahmadeo; Hadir, Latifa – Journal of Chemical Education, 2010
An engaging and colorful demonstration was developed that illustrates the utility of resonance theory in predicting the relative acidities of alcohols. The demonstration can be used as an introduction to exercises that provide students with practice in writing resonance structures and in predicting relative acidities. The demonstration exploits…
Descriptors: Demonstrations (Educational), Organic Chemistry, Color, Science Activities
Adelhelm, Manfred; Aristov, Natasha; Habekost, Achim – Journal of Chemical Education, 2010
The physical properties of oxygen, in particular, the blue color of the liquid phase, the red glow of its chemiluminescence, and its paramagnetism as shown by the entrapment or deflection of liquid oxygen by a magnetic field, can be investigated in a regular school setting with hand-held spectrophotometers and digital cameras. In college-level…
Descriptors: Chemistry, Science Instruction, Instrumentation, Demonstrations (Educational)
Wright, Stephen W. – Journal of Chemical Education, 2010
The oxidation of potassium sodium tartrate by hydrogen peroxide catalyzed by cobalt(II) chloride is a favorite lecture demonstration. I present conditions under which this experiment may be performed without need for 30% hydrogen peroxide and without need for controlled heating or any heating of the reaction mixture. I further show that this…
Descriptors: Chemistry, Science Instruction, Demonstrations (Educational), Science Experiments
Dicks, Andrew P. – Journal of Chemical Education, 2011
An introductory organic classroom demonstration is discussed where analogies are made between common societal hand contact and covalent bond formation. A handshake signifies creation of a [sigma] bond ("head-on" orbital overlap), whereas the action of praying illustrates "sideways" overlap and generation of a [pi] bond. The nature of orbital and…
Descriptors: Undergraduate Students, College Science, Lecture Method, Chemistry
Gee, Kent L.; Vernon, Julia A.; Macedone, Jeffrey H. – Journal of Chemical Education, 2010
Although hydrogen-oxygen balloon explosions are popular demonstrations, the acoustic impulse created poses a hearing damage risk if the peak level exceeds 140 dB at the listener's ear. The results of acoustical measurements of hydrogen-oxygen balloons of varying volume and oxygen content are described. It is shown that hydrogen balloons may be…
Descriptors: Chemistry, Hearing Impairments, Acoustics, Risk
Mohr, Christian; Spencer, Claire L.; Hippler, Michael – Journal of Chemical Education, 2010
We describe the construction and performance of an inexpensive modular Raman spectrometer that has been assembled in the framework of a fourth-year undergraduate project (costs below $5000). The spectrometer is based on a 4 mW 532 nm green laser pointer and a compact monochromator equipped with glass fiber optical connections, linear detector…
Descriptors: Spectroscopy, Chemistry, Science Experiments, Measurement Equipment
Struyf, Jef – Journal of Chemical Education, 2011
The boiling point of a monofunctional organic compound is expressed as the sum of two parts: a contribution to the boiling point due to the R group and a contribution due to the functional group. The boiling point in absolute temperature of the corresponding RH hydrocarbon is chosen for the contribution to the boiling point of the R group and is a…
Descriptors: Organic Chemistry, Mathematical Formulas, Demonstrations (Educational), Investigations
Campbell, Dean J.; Miller, Josiah D.; Bannon, Stephen J.; Obermaier, Lauren M. – Journal of Chemical Education, 2011
LEGO bricks can be used for a number of demonstrations of chemical structures and properties, especially at the nanoscale level. These bricks can also be used to model instrumentation that probes these structures and properties. Detailed resources about many of these demonstrations are located on the extensive Web site "Exploring the Nanoworld…
Descriptors: Chemistry, Internet, Science Education, Web Sites
Mirholm, Alexander; Ellervik, Ulf – Journal of Chemical Education, 2009
We describe the use of acrylic tanks (400 x 450 x 27 mm) for visualization of chemical demonstrations in aqueous solutions. Examples of well-suited demonstrations are oscillating reactions, pH indicators, photochemical reduction of Lauth's violet, and chemoluminiscent reactions. (Contains 1 figure.)
Descriptors: Chemistry, Science Instruction, Demonstrations (Educational), Scientific Principles
Mueller, Sherry A.; Anderson, James E.; Wallington, Timothy J. – Journal of Chemical Education, 2009
A significant issue associated with ethanol-gasoline blends is the phase separation that occurs with the addition of small volumes of water, producing an ethanol-deficient gasoline layer and an ethanol-rich aqueous layer. The gasoline layer may have a lower-than-desired octane rating due to the decrease in ethanol content, resulting in engine…
Descriptors: Fuels, Demonstrations (Educational), Science Instruction, Teaching Methods
Vitz, Ed – Journal of Chemical Education, 2010
A handheld digital microscope (HDM) interfaced to a computer with a presentation projector is used to project an out-of-focus yellow patch on the screen, then the patch is brought into focus to show that, paradoxically, there are red and green but no yellow pixels. Chromaticity diagrams are used to discuss this observation and spectroscopic…
Descriptors: Chemistry, Laboratory Equipment, Spectroscopy, Handheld Devices
McIntosh, Julie; White, Sandra; Suter, Robert – Science Scope, 2009
Students within the Findlay, Ohio, City School District, as well as students across the country, struggle with understanding physical and chemical changes. Therefore, in this article, the authors suggest some standards-based activities to clarify misconceptions and provide formative assessments to measure your students' progress as they determine…
Descriptors: Urban Schools, Chemistry, Misconceptions, Standard Setting
Mundell, Donald W. – Journal of Chemical Education, 2009
Intermolecular forces and surface tension gradients in solutions lead to remarkable flows, known as Marangoni flows, where liquid flows from a region of low surface tension towards higher surface tension. Details of these flows, not visible to the naked eye, are made visible on an overhead projector owing to variation in the index of refraction.…
Descriptors: Projection Equipment, Chemistry, Human Body, Gardening