The importance of understanding factors that contribute to surface wettability is highlighted in this new organic chemistry laboratory experiment, which aims to introduce the application of organic chemistry at the interface of polymer chemistry and material science. Polydimethylsiloxane (PDMS), a hydrophobic silicon-based rubber, is polymerized…

Teaching has become a challenge mission among generations as direct instructions are not effective anymore and; therefore, students need to be convinced for sharing and fulfilling their responsibilities. In this study, students are perceived to act as role models in managing the laboratory classes of general biology. Four groups were classified as…

We propose to reconsider the well-known experiment about the interference of white light from a thin soap film by adopting as an illuminating source the RGB triad produced by a LED projector. The interference pattern shows up in a particularly fascinating way and it contains direct, essential information about both the wave nature of light and of…

The paper presents a series of experiments that demonstrate the phenomenon of electromagnetic induction. These make it possible to determine the direction of the induced current and so confirm Lenz's Law. The simple experiments can be reproduced in a school laboratory and can be recommended for students' project activity.

Air pollution is one of our day's significant reasons for human health problems and affects every community throughout the world. Monitoring air pollution is a key aspect of raising awareness and pollution mitigation approaches followed by different nations. This paper targets to develop a low-cost Internet of things-based embedded system to…

Marble, formed by the metamorphism of limestone, is commonly used in the construction industry and sculpting. The mineral in marble is either calcite [CaCO[subscript 3]] or dolomite [CaMg(CO[subscript 3])[subscript 2]] or sometimes both. The pure white Carrara marble from Italy was made a household name by Michelangelo, the famous sculptor of the…

Estimation of soil texture is an essential skill for soil scientists, but a difficult skill to learn. We compared two approaches for teaching soil texture: the traditional flowchart approach and an experimental self-calibration method. Three lab sections of an introductory soil science class were assigned to learn by the flowchart method (n = 60)…

In this study, we compared students' learning from two conditions in a unit on inclined planes: Virtual-then-Physical (V-t-P) (n = 50), where students conducted a virtual lab followed by a physical lab, or vice versa in the Physical-then-Virtual condition (P-t-V) (n = 60). We analyzed students' written explanations after each lab focusing on…

In this article, we demonstrate the use of a simple pendulum to explore the concepts of kinematics and dynamics. A simple homemade pendulum and a phone-based accelerometer are used to determine, at various points in time, the acceleration of a moving train. The dynamical and kinematics data from the homemade pendulum and the accelerator can then…

This paper describes use of a linear motor as a starting point for introducing related electricity and magnetism concepts. The Linear Motor Laboratory consists of a series of mechanisms and student learning activities centered around a reconstruction of the Charles Page Electromagnetic Engine patented in 1854. This work was undertaken in the Make…

This study was conducted to confirm the specifications of the laboratory and the list of practice tools for technology education in elementary schools in Korea. For effective technology education, standardized laboratory specifications and a list of practice tools are needed. However, there were no standardized laboratory specifications and a list…

Pre-service teachers who conduct experiments are faced with various risks in terms of physical, health and environment due to the chemicals they are exposed to in the laboratory classes. Working in a laboratory without knowing these risks causes accidents such as chemical spills, explosions and fires, and even individual injuries. For this reason,…

Complementing biology lecture courses with laboratory sections is nearly universal at undergraduate institutions, yet many topics in biology do not easily lend themselves to experiment-based laboratory activities. Topics such as comparative anatomy, evolution and systematics are often taught as passive, observation-based laboratories. In this…

Although science is practiced globally, science is historically a field dominated by white people. In response, science education has worked to increase equity in science by examining and transforming science learning environments. However, lacking within this work is a direct examination of whiteness. By engaging in autoethnographic storytelling,…

Laboratory work has been a common element of science courses at university level for around two centuries, but its practice has been criticised by scholars in the field and related stakeholders. Mainly on a rationale of financial justification and educational efficacy, more evidence for learning has been called for. The aims of this systematic…