Testing the reproducibility of an experiment is considered a good practice in science, and the possibility to reproduce an experiment is a condition of its scientificity. We investigate the ability of children to consider a counterintuitive phenomenon as reproducible. The study involved 62 5-year-old children from 4 classes. They were presented…

A practical focusing on the synthesis, isolation, and hydrolysis of ammonia borane (AB), H[subscript 3]N·BH[subscript 3], was developed for first-year undergraduate students. By requiring students to propose their own experimental setup to measure the amount of gas produced upon hydrolysis, experimental design skills were introduced and developed…

We created an introductory physics activity for undergraduate students, consisting of measuring the same physical quantity by different methods. This allows us to confront students with questions of uncertainty, precision, and model versus theory. The aim was to measure the height of a building using only a smartphone and everyday low-cost…

Students in the intermediate grades love to talk--but not necessarily about making sense of what they are learning. How do teachers design classrooms that cultivate productive discourse? How do they get out of the way and teach children to learn? First, let's give them something to talk about. Second, teachers need to teach them how to engage in…

The purpose of this research was to investigate the effect of problem-based scenario method with experiments on the biology self-efficacy and critical thinking tendency of the prospective science teachers. In the study, pre-test and post-test experimental design without any control group was used. The participants of the research were 108…

Hands-on, inquiry-based laboratory activities are excellent opportunities to introduce first-year undergraduate students to the lab environment and to catalyze new interest in topics they may not yet know or be as enthusiastic about studying. We describe a multisession introductory laboratory activity that couples the research areas of medicinal…

In the Spring 2021 Organic Chemistry Lab class at Penn State Schuylkill, COVID-19 restrictions and uncertainty required a flexible plan. The first 4 weeks of 15 were fully remote, and videos of standard organic techniques were used, followed by an exam. In the next 5 weeks, some students were in the lab and some were remote. A document camera was…

The purposes of this study were: To examine the effects of low-cost mini science experiment kits on Thai 6th graders' science learning achievement; To investigate how these kits impact Thai 6th graders' Science process skills; To explore their influence on Thai 6th graders' scientific mindset The participants were 111 sixth-grade students from…

Developing students' critical thinking skills is often seen as an important educational goal for inquiry assignments. In this study, we investigated to what extent pre-laboratory activities of a chemical inquiry assignment influence students' independent critical thinking. We compared two forms of pre-laboratory activities that are frequently used…

This paper is about an experimental problem on forced oscillations, which was given to 14-year-old primary school pupils at the Slovenian national (final) level of the physics competition in April 2019. At the time when the competition took place these pupils were approaching the end of the school year, when they encountered physics as a school…

Colleges and educational institutions throughout the globe have adapted a pseudo-online educational model. This is also evident in health sciences courses designed for biochemical and chemical education. Biochemistry (along with general, organic and analytical) education is significant in the basic prerequisite education of undergraduate health…

A virus is a small, infectious particle that lives inside a host. Today, viruses have an important role in our daily life. The reason for this is that viruses, including coronavirus (COVID-19), are affecting many people in the world. The most important measure that can be taken to stop the spread of the disease will be self-taken measures along…

Light rays refract when passing through pockets of transparent fluids with different indices of refraction such as ordinary air pockets of varying temperature. This phenomenon makes night stars twinkle, distorts views above hot asphalt roads and hot barbeque grills, and provides an opportunity for visualizing the normally invisible movement of…

Powerbanks differ in the amount of energy they can store. Usually this capacity (in a colloquial sense) of the powerbanks is stated in the form of charge in mAh for effective advertising. From a physical point of view, shouldn't the energy that a powerbank can provide be of interest? For students, charging smartphones with power banks is…

Electrochemistry is omnipresent in our lives, but students often do not recognize that the electrochemistry they learn in general chemistry happens in the batteries on which we depend. Students also may not recognize that they have the power to make greener choices about batteries using their knowledge of chemistry. This 4 h general chemistry…