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Showing 16 to 30 of 94 results Save | Export
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Vieyra, Rebecca Elizabeth; Vieyra, Chrystian; Macchia, Stefano – Physics Teacher, 2017
Although the advent and popularization of the "flipped classroom" tends to center around at-home video lectures, teachers are increasingly turning to at-home labs for enhanced student engagement. This paper describes two simple at-home experiments that can be accomplished in the kitchen. The first experiment analyzes the density of four…
Descriptors: Physics, Science Experiments, Science Instruction, Homework
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Mumba, Frackson; Tsige, Mesfin – Physics Education, 2007
A simple method based on the moment of forces and Archimedes' principle is described for finding density without measuring the mass and volume of an object. The method involves balancing two unknown objects of masses M[subscript 1] and M[subscript 2] on each side of a pivot on a metre rule and measuring their corresponding moment arms. The object…
Descriptors: Scientific Concepts, Science Activities, Measurement, Computation
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Pinto, Gabriel; Gauthier, Carmen V. – Journal of Chemical Education, 2009
Any student that has spent time in the kitchen knows that hot vegetable oil will pop and spatter violently after coming into contact with water such as that on the surface of foods (meat, fish, potatoes, etc.). This well-known effect can be used as an instructional resource to promote cooperative, active, and inquiry-based learning about central…
Descriptors: Fuels, Water, Inquiry, Food
Seeton, Christopher John – ProQuest LLC, 2009
Microchannel heat exchangers are gaining popularity due to their ability to handle high pressures, reduce refrigerant charge, and reduce heat exchanger package size. These heat exchanger designs provide better heat exchange performance due to increased refrigerant side heat transfer coefficients and geometries that allow for a denser packing…
Descriptors: Fuels, Heat, Video Equipment, Video Technology
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Chandrasekhar, Meera; Litherland, Rebecca – Science Scope, 2006
In this article, the authors describe a series of activities they have used with middle-level students. The first set of lessons explores density through the layering of liquids. In the second set, they use some of the same liquids to explore the density of solids. The third set investigates how temperature affects the density of…
Descriptors: Concept Formation, Science Activities, Scientific Concepts
Marshall, Karen Benn – ProQuest LLC, 2009
This study sought to explore qualitatively how participation in an informal science program might affect the following aspects of upper elementary school children's scientific thinking: conceptual understanding, epistemology of science, and the formation of their identity as science learners. A purposefully selected, maximum variation sample of…
Descriptors: Elementary School Students, Science Programs, After School Programs, Interviews
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Orzolek, Brandon J.; Kozlowski, Marisa C. – Journal of Chemical Education, 2021
Herein, we describe an accessible and safe organic chemistry lab experiment that can be completed at home. Liquid-liquid extraction is a fundamental organic chemistry lab experiment that touches on topics such as chemical structure, density, solubility, and acid-base chemistry. Given the increased demand for safe organic chemistry experiments that…
Descriptors: Organic Chemistry, Science Instruction, Teaching Methods, Laboratory Experiments
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Shaw, Mike – Science Scope, 2003
Integrates story telling into a science activity on the density of liquids in order to increase student interest. Shows the relationship between mass and volume ratio and how they determine density. Includes teacher notes. (YDS)
Descriptors: Creativity, Elementary Secondary Education, Inquiry, Misconceptions
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Giulotto, Enrico; Malgieri, Massimiliano – Physics Education, 2022
The distinction between pressure in a liquid and in a gas is often treated in a cursory way, or not treated at all, even in university level textbooks. Most texts fail to point out the relation between pressure and density in a gas as compared to pressure in a--virtually incompressible--liquid. In many instances this also results in a dismissive…
Descriptors: Science Instruction, College Science, Secondary School Science, Teaching Methods
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Faltin, Lukas; Feser, Markus Sebastian – Physics Education, 2021
Since the viscous behaviour of liquids is evident in many everyday situations, it is plausible to assume that students have (pre-)conceptions about the physics behind these phenomena. As yet, no reliable studies exist on this topic. Therefore, the present study aims to address this research gap by exploring secondary school students' conceptions…
Descriptors: Science Instruction, Grade 9, Secondary School Science, Scientific Concepts
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Ciccioli, Andrea; Glasser, Leslie – Journal of Chemical Education, 2011
For most materials, the solid at and near the triple-point temperature is denser than the liquid with which it is in equilibrium. However, for water and certain other materials, the densities of the phases are reversed, with the solid being less dense. The profound consequences for the appearance of the "pVT" diagram of one-component materials…
Descriptors: Chemistry, Science Instruction, Water, Visual Aids
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Jordan, A. D. – Journal of Chemical Education, 2007
A simple experiment, the determination of the density of a liquid by several methods, is presented. Since the concept of density is a familiar one, the experiment is suitable for the introductory laboratory period of a first- or second-year course in physical or analytical chemistry. The main objective of the experiment is to familiarize students…
Descriptors: Laboratory Safety, Chemistry, Regression (Statistics), Undergraduate Students
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Gesser, H. D.; Ward, Ian – Journal of Chemical Education, 1997
Describes a demonstration on the density of the liquids water and ethanol and the solubility of air in those liquids. Also includes a related demonstration using Styrofoam balls. (DKM)
Descriptors: Chemistry, Demonstrations (Science), Density (Matter), Higher Education
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Zheng, Yuan; Huang, Zewei; Yang, Yanbin – Physics Teacher, 2021
As intriguing optical phenomena that occur in nature, mirages are widely known and often mentioned in physics classes when introducing the basics of optics. In the atmosphere, a mirage occurs under the condition of vertical variations in air density, which are usually caused by a temperature gradient. The light rays are continuously refracted and…
Descriptors: Physics, Science Instruction, Optics, Teaching Methods
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Ahmad, Jamil – Journal of Chemical Education, 1995
Describes a demonstration which creates the illusion of violating Archimedes Principle. The procedure involves two liquids with identical densities and produces drops of one liquid suspended in the middle of a column of the second liquid. (DDR)
Descriptors: Chemistry, Demonstrations (Science), Discussion (Teaching Technique), Elementary Secondary Education
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