Whether it is a rapid-fire Twitter event as part of #ASEchat, or BBC Radio 4's "Inside Science," the discussion of practical work generates powerful debate. While it is right that the best use of practical work is continually discussed, its value in science teaching is without question. The level of discussion is being further heightened…

We selected diabetes mellitus for this laboratory exercise to provide students with an explicit model for scientific research concerning the association between the R230C polymorphism and susceptibility to type 2 diabetes mellitus, which is highly prevalent in the Mexican population. We used a collaborative project-based learning to engage…

I present a witty solution in this article about how we may obtain data simply and cheaply from physical experiments, with which we can do counting, as well. To this interdisciplinary task I turn to Delphi for help, in which we can program a digital video as a multimedia element. I show an example from the programming of plain multimedia elements…

Chia seeds will sprout on almost any moist surface, and they respond quickly to experimental variables. Furthermore, the newly recognized nutritional value and rich cultural history of chia seeds offer the possibility of highly motivating and educational interdisciplinary extensions, especially appropriate to students in the middle grades.…

This paper deals with subtleties and misunderstandings regarding the Clausius relation. We start by demonstrating the relation in a new and simple way, explaining clearly the assumptions made and the extent of its validity. Then follows a detailed discussion of some confusions and mistakes often found in the literature. The addressed points…

The diffuse reflectance infrared Fourier transform (DRIFT) spectra of sand samples exhibit features reflecting their composition. Basic multivariate analysis (MVA) can be used to effectively sort subsets of homogeneous specimens collected from nearby locations, as well as pointing out similarities in composition among sands of different origins.…

The efficiency of a laundry-washing process is typically assessed using reflection measurements. A spectrometer and an integrating sphere are used to obtain the reflection data. The similarities between this equipment and a commercially available flatbed scanner are examined, and the way a flatbed scanner can be used to obtain detergent…

This article outlines the reasons why practical work is declining in schools. Microscale chemistry is put forward as a sustainable way of remedying this. The advantages of its use are outlined, including a description of some practical techniques that can be used to illustrate these advantages. There is also a description of how you can make the…

"Why are the seas blue?" is a huge question that may reach far beyond the middle school level. However, our objective is to bring "simple" tools into the classroom to explain science without tampering with its essence and complexity. The experiment described in this article is only concerned with teaching the subject of absorption as related to…

The introduction of teaching about liquid crystals is discussed from several points of view: the rationale why to teach them, the basics about liquid crystals or what the teacher should teach about them, the fundamental pre-knowledge of students required, the set of experiments accompanying the teaching and the brief report on the already…

We present a low-cost, fully computer-controlled, Arduino-based, educational laboratory (SolarInsight) to be used in undergraduate university courses concerned with electrical engineering and physics. The major goal of the system is to provide students with the necessary instrumentation, software tools and methodology in order to learn fundamental…

Cost-effective, easily replicated program is a win-win situation for high schoolers who teach science and for their elementary students. The thank-you letter from Leslie, a grade-schooler in San Diego County's Ramona Unified School District, speaks volumes about the excitement generated by "Celebrate Science"--an innovative,…

A hands-on, minds-on inquiry chemistry experiment was developed for use in K-12 schools that enables students to combine the chemicals of their choice and observe the results. The chemistry involved is water based and builds upon acid-base, double displacement, and iodometric detection of starch reactions. Chemicals readily available in the…

The aim of this paper is to introduce a simple and low-cost experimental setup that can be used to study the eddy current brake, which considers the motion of a sliding magnet on an inclined conducting plane in terms of basic physical principles. We present a set of quantitative experiments performed to study the influence of the geometrical and…

Within the framework of the Lisbon Agreement, all European member states are encouraged to take measures to increase the number of science and technology students in higher education. To promote this educational model, a chemistry project was developed that focuses on high school students and especially on the involvement of their teachers by…