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Sweeder, Ryan D.; Jeffery, Kathleen A. – Journal of Chemical Education, 2013
This article describes the use of a comprehensive demonstration suitable for a high school or first-year undergraduate introductory chemistry class. The demonstration involves placing a burning candle in a container adjacent to a beaker containing a basic solution with indicator. After adding a lid, the candle will extinguish and the produced…
Descriptors: Chemistry, Demonstrations (Educational), Secondary School Science, College Science
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Sosabowski, Michael Hal; Campbell, David – School Science Review, 2013
This article outlines some engagement or "showmanship" devices that can enhance the impact of live practical demonstrations. The fifteen engagement techniques described herein are used by the author in his spectacular chemistry demonstration shows in theaters, but they can also be useful in the classroom environment. Many of the…
Descriptors: Demonstrations (Educational), Science Instruction, Learner Engagement, Chemistry
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Price, Daniel S.; Brooks, David W. – Chemistry Education Research and Practice, 2012
While lecture demonstrations have been conducted in chemistry classrooms for hundreds of years, little research exists to document the frequency with which such demonstrations are employed or their effect on learners' motivation and performance. A mixed-methods research study was performed, using quantitative and qualitative survey data, along…
Descriptors: Student Motivation, Chemistry, Assignments, Lecture Method
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Majerich, David M.; Schmuckler, Joseph S. – Journal of College Science Teaching, 2007
A large enrollment, instructor-centered chemistry course taught with science demonstrations was transformed into one that was more student-centered. Course survey and examination results revealed more positive perceptions of the benefits of demonstrations and greater content mastery for students in the modified course than for those in the…
Descriptors: Student Attitudes, Chemistry, Science Instruction, Educational Benefits
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Kuntzleman, Thomas Scott; Rohrer, Kristen; Schultz, Emeric – Journal of Chemical Education, 2012
Lightsticks, or glowsticks as they are sometimes called, are perhaps the chemist's quintessential toy. Because they are easy to activate and appealing to observe, experimenting with lightsticks provides a great way to get young people interested in science. Thus, we have used lightsticks to teach chemical concepts in a variety of outreach settings…
Descriptors: Inorganic Chemistry, Thermodynamics, Physics, Demonstrations (Educational)
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Panzarasa, Guido; Sparnacci, Katia – Journal of Chemical Education, 2013
A revisitation of the classical "mushroom cloud" demonstration is described. Instead of aniline and benzoyl peroxide, the proposed reaction involves household chemicals such as alpha-pinene (turpentine oil) and trichloroisocyanuric acid ("Trichlor") giving an impressive demonstration of oxidation and combustion reactions that…
Descriptors: Science Instruction, Demonstrations (Educational), Chemistry, Scientific Principles
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Muske, Kenneth R.; Nigh, Christopher W.; Weinstein, Randy D. – Journal of Chemical Education, 2007
The use of lemon cell battery to run an electric DC motor is demonstrated for chemistry students. This demonstration aids the students in understanding principles behind the design and construction of the lemon cell battery and principles governing the electric DC motor and other basic principles.
Descriptors: Chemistry, Equipment, Demonstrations (Educational), Science Instruction
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Goto, Hiromasa; Yoneyama, Hiroyuki; Togashi, Fumihiro; Ohta, Reina; Tsujimoto, Akitsu; Kita, Eiji; Ohshima, Ken-ichi – Journal of Chemical Education, 2008
The electrochemical polymerization of aniline and pyrrole, and demonstrations of electrochromism and the polymer battery effect, are presented as demonstrations suitable for high school and introductory chemistry at the university level. These demonstrations promote student interest in the electrochemical preparation of conducting polymers, where…
Descriptors: Plastics, Molecular Structure, Student Interests, Chemistry
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Branan, Daniel; Morgan, Matt – Journal of Chemical Education, 2010
Students everywhere love chemistry demonstrations, especially if they involve explosions. But have you ever wanted to move beyond the "wow" factor and find a way to incorporate active student learning into your demos? What if you could get them to think more deeply about what they're observing, and then find out if they really understand what…
Descriptors: Learning Activities, Formative Evaluation, Inquiry, Chemistry
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Fritz, Mark D.; Brumbach, Stephen B.; Hartman, JudithAnn R. – Journal of Chemical Education, 2005
The demonstration of sample segregation, which is simple, and visually compelling illustrates the importance of sample handling for students studying analytical chemistry and environmental chemistry. The mixture used in this demonstration has two components, which have big particle size, and different colors, which makes the segregation graphic.
Descriptors: Chemistry, Environmental Education, Demonstrations (Educational), Science Instruction
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Prall, Bruce R. – Journal of Chemical Education, 2008
The titration of HCl with NaOH has traditionally been used to introduce beginning chemistry students to the concepts of acid-base chemistry and stoichiometry. The demonstration described in this article utilizes this reaction as a means of providing students an opportunity to observe the dynamic motion associated with a swirling vortex and its…
Descriptors: Chemistry, Demonstrations (Educational), Science Instruction, Scientific Principles
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Shmaefsky, Brian R. – Journal of College Science Teaching, 2005
Classroom demonstrations are a great vehicle for getting students to apply information they have heard in a lecture. Educational research is replete with data showing that concept application in an inquiry setting reinforces long-term science content retention. This means that students learn best when they experience applications of concepts and…
Descriptors: Elementary School Students, Biochemistry, Biology, Service Learning
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Baddock, Maree; Bucat, Robert – International Journal of Science Education, 2008
In an action research study, 66 students from Year 11 in an Australian school were shown the colour of methyl violet indicator in some hydrochloric acid solutions, and then in an acetic acid solution. The intent was to create a cognitive conflict, resolution of which would lead to an understanding of the concept "weak acid". Student learning…
Descriptors: Action Research, Conflict, Chemistry, Science Instruction
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Hanson, Robert M.; Riley, Patrick; Schwinefus, Jeff; Fischer, Paul J. – Journal of Chemical Education, 2008
The use of qualitative graphs of Gibbs energy versus temperature is described in the context of chemical demonstrations involving phase changes and colligative properties at the general chemistry level. (Contains 5 figures and 1 note.)
Descriptors: Graphs, Chemistry, College Science, Science Instruction
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Solomon, Sally D.; Rutkowsky, Susan A. – Journal of Chemical Education, 2010
Liquid carboxylic acids (or primary amines) with limited solubility in water are dissolved by addition of aqueous sodium hydroxide (or hydrochloric acid) on the stage of an overhead projector using simple glassware and very small quantities of chemicals. This effective and colorful demonstration can be used to accompany discussions of the…
Descriptors: Organic Chemistry, Chemistry, Projection Equipment, Science Activities
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