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Direct linkSzeberenyi, Jozsef – Biochemistry and Molecular Biology Education, 2012
Transcription termination comes in two forms in "E. coli" cells. Rho-dependent termination requires the binding of a termination protein called Rho factor to the transcriptional machinery at the terminator region, whereas Rho-independent termination is achieved by conformational changes in the transcript itself. This article presents a test…
Descriptors: Biology, Science Instruction, Science Experiments, Molecular Biology
Cross, Rod – Physics Teacher, 2012
The first recorded experiments describing the phenomena made popular by Newton's cradle appear to be those conducted by Edme Mariotte around 1670. He was quoted in Newton's "Principia," along with Wren, Wallis, and Huygens, as having conducted pioneering experiments on the collisions of pendulum balls. Each of these authors concluded that momentum…
Descriptors: Physics, Motion, Science Experiments, Conservation (Concept)
Galli, J. Ronald; Amiri, Farhang – Physics Teacher, 2012
A thought experiment that includes a square light clock is similar to the traditional vertical light beam and mirror clock, except it is made up of four mirrors placed at a 45[degree] angle at each corner of a square of length L[subscript 0], shown in Fig. 1. Here we have shown the events as measured in the rest frame of the square light clock. By…
Descriptors: Scientific Concepts, Science Instruction, Light, Motion
Wheeler, Lindsay; Bell, Randy – Science Teacher, 2012
Inquiry has a reputation for being a great way for students to learn but difficult for teachers to implement. It does not have to be that way. Inquiry comes in many forms, which can be adapted for any science classroom at any point in the year for any level of student. In this article the authors describe how to help chemistry students develop a…
Descriptors: Chemistry, Inquiry, Science Instruction, Teaching Methods
Kraus, Rudolf V. – Science Teacher, 2014
This article describes a two-day optics laboratory activity that investigates the scientific phenomenon of reflection, which students are generally familiar with but usually have not studied in depth. This investigation can be used on its own or as part of a larger unit on optics. This lesson encourages students to think critically and…
Descriptors: Science Instruction, Science Laboratories, Optics, Scientific Concepts
Lietor-Santos, Juan Jose – Physics Teacher, 2014
The study of the ideal solenoid is a common topic among introductory-based physics textbooks and a typical current arrangement in laboratory hands-on experiences where the magnetic field inside a solenoid is determined at different currents and at different distances from its center using a magnetic probe. It additionally provides a very simple…
Descriptors: Magnets, Physics, Science Experiments, Computer Simulation
Temiz, Burak Kagan – Physics Education, 2014
This study was conducted to develop a simple and inexpensive experimental apparatus that can measure the position of an object moving along a straight line at certain time intervals. For the construction of the apparatus, a battery-powered toy car, a fine-tipped paint brush, gouache (or watercolour) paint and paper tape were used. The working…
Descriptors: Kinetics, Science Equipment, Science Experiments, Cost Effectiveness
Tracy, Charles; Cunningham, Elizabeth – Education in Science, 2014
This article reports on a plea directed to schools in England that changed status to an "academy" and thus lost their Local Authority Radiation Protection Adviser (RPA) service. These schools have been encouraged to do all that they can to hang on to their sources (radioactive equipment used in classroom experiments to investigate…
Descriptors: Science Course Improvement Projects, Science Experiments, Information Sources, Radiation
Download full textInce, Elif; Kirbaslar, Fatma Gulay; Yolcu, Ergun; Aslan, Ayse Esra; Kayacan, Zeynep Cigdem; Alkan Olsson, Johanna; Akbasli, Ayse Ceylan; Aytekin, Mesut; Bauer, Thomas; Charalambis, Dimitris; Gunes, Zeliha Ozsoy; Kandemir, Ceyhan; Sari, Umit; Turkoglu, Suleyman; Yaman, Yavuz; Yolcu, Ozgu – Turkish Online Journal of Educational Technology - TOJET, 2014
The purpose of this study is to develop a 3-dimensional interactive multi-user and multi-admin IUVIRLAB featuring active learning methods and techniques for university students and to introduce the Virtual Laboratory of Istanbul University and to show effects of IUVIRLAB on students' attitudes on communication skills and IUVIRLAB. Although there…
Descriptors: Foreign Countries, Virtual Classrooms, Laboratories, Interactive Video
Girault, Isabelle; d'Ham, Cédric – Journal of Science Education and Technology, 2014
When solving a scientific problem through experimentation, students may have the responsibility to design the experiment. When students work in a conventional condition, with paper and pencil, the designed procedures stay at a very general level. There is a need for additional scaffolds to help the students perform this complex task. We propose a…
Descriptors: Science Instruction, Problem Solving, Science Experiments, Scaffolding (Teaching Technique)
De, Subhranil – Physics Education, 2014
The familiar system involving a uniform ladder sliding against a vertical wall and a horizontal floor is considered again. The floor is taken to be smooth and the wall to be possibly rough--a situation where no matter how large the static friction coefficient between the ladder and the wall, the ladder cannot lean at rest and must slide down.…
Descriptors: Kinetics, Mathematical Logic, Mathematical Models, Physics
Widdicombe, A. T.; Ravindrarajah, P.; Sapelkin, A.; Phillips, A. E.; Dunstan, D.; Dove, M. T.; Brazhkin, V. V.; Trachenko, K. – Physics Education, 2014
The slow flow of a viscous liquid is a thought-provoking experiment that challenges students, academics and the public to think about some fundamental questions in modern science. In the Queensland demonstration--the world's longest-running experiment, which has earned the Ig Nobel prize--one drop of pitch takes about ten years to fall, leading to…
Descriptors: Foreign Countries, Science Instruction, Science Experiments, Physics
Ivanov, Dragia; Nikolov, Stefan; Petrova, Hristina – Physics Education, 2014
In this paper we present three different methods for testing Bernoulli's law that are different from the standard "tube with varying cross-section." They are all applicable to high-school level physics education, with varying levels of theoretical and experimental complexity, depending on students' skills, and may even be…
Descriptors: Science Instruction, Physics, Scientific Principles, Secondary School Science
Carroll, Christopher W.; Keller, Lani C. – Biochemistry and Molecular Biology Education, 2014
This adaptable graduate laboratory course on protein purification offers students the opportunity to explore a wide range of techniques while allowing the instructor the freedom to incorporate their own personal research interests. The course design involves two sequential purification schemes performed in a single semester. The first part…
Descriptors: Graduate Study, College Science, Science Laboratories, Science Process Skills
Saxena, Sachin; Satsangee, Soami P. – Journal of Chemical Education, 2014
Remote access to real experiments is crucial for distance learners to experience the sciences. The exploitation of technology for this purpose is advantageous in global teaching and in exchange of ideas on a single front irrespective of distance barriers. Implementation of the distance method leads to cost-effective integrated-e-learning where…
Descriptors: Science Instruction, Distance Education, Chemistry, Science Experiments
