It might sound to some like an impossible target to give children 22 hours of scientific enquiry by Christmas, but the current COVID-19 pandemic has already demonstrated its capacity to make the impossible happen and to upturn so many of the assumptions that have shaped the way people teach and learn. Children can reach 22 hours of enquiry if…

This activity allows students to visualize how to obtain different stoichiometries with various techniques in a single experiment. The involvement of three phases adds to the student's interest. Instructional materials are provided to facilitate the experimental procedures, interpretation of results, and error analysis. The reaction of Li from a…

This study uses a one-group pre-test and post-test design to describe the mental models of geologic time held by a group of Spanish pre-service primary teachers, before and after an instructional intervention that introduced the work with different timescales. The questionnaire was given before instruction and five weeks after it. It consists of a…

This paper details the creation of a human gross anatomy laboratory from a defunct chemistry laboratory at West Liberty University, a small primarily undergraduate institution in West Virginia. The article highlights important considerations with regard to the development of a human gross anatomy laboratory including access to human gifts;…

Ernst Haeckel (1834-1919) is most recalled in the history of biology for his Recapitulation Theory and the allegedly fudged illustrations of embryos that he presented in support of that case. Less well known is his contribution to abiogenesis theory, which he incorporated into evolutionary theory. In so doing, Haeckel, a vitriolic atheist, was…

Igniting excitement for physics in our students is a goal of every instructor. In this paper, we discuss a unique example of the concept of density, a subject that is rarely viewed as intriguing by students. By combining a problem involving dinosaurs and an effective density, our students' interest is often captured through calculating an…

Improving the attitudes of students towards science is one of the main challenges facing the teaching of the subject. The main objective of this study is to analyze the effect of students' attitudes towards science through different didactic interventions. The bibliographic search was carried out via the Web of Science database, specifically in…

We propose a semiquantitative experiment that associates video-analysis and ordinary procedures of experimental physics whose objective is to investigate the dual character of Oobleck, a mixture of cornstarch in water, which appears thicker or thinner depending on how it is physically manipulated. The results are presented and interpreted taking…

Research-based science curriculum has become a common means of supporting best practices in science teaching. However, despite one elementary school's adoption of commercially available science curriculum, the school's fifth-grade teacher selected only certain science modules for implementation in her classroom. The purpose of this narrative study…

The complete structural analysis and resynthesis of an unknown compound, selected from a library of dipeptides, provided a framework for a course that built from expository experiments toward a guided-inquiry approach. We used this semester-long lab as a replacement for conventional second semester organic chemistry laboratory and successfully…

Michael Faraday is considered one of the greatest science lecturers in history. He popularized the Christmas Lectures as a format of science communication that has survived until today in the Royal Institution of Great Britain. Especially, his "Chemical History of a Candle" has become a classic of science communication that has inspired…

We present herein a module of pigment synthesis experiments that could be adapted and implemented in a variety of curricular settings. At the conclusion of each of the past two spring terms at our high school, we offered a 4 day short course on the chemical synthesis of pigments used in art. As part of the course, our students synthesized four…

Collisions are real-world situations from everyday life (such as car crashes, playing billiards, etc.) that can be described and understood by the principle of conservation of momentum. One might expect that learning from simple collisions might help students understand more complicated physical phenomena. However, from our teaching experiences we…

The suspension of in-person classes brought about by the COVID-19 pandemic necessitated adjustments to all manner of instruction. Laboratory instruction was particularly challenged since the primary response was to deliver content remotely, i.e., online. In an effort to reinforce laboratory topics and engage students, five click-through organic…

Extra virgin olive oil (EVOO) is a refined, highly valued, and relatively expensive food ingredient, typical of the Mediterranean area. Detection of EVOO that has been adulterated or counterfeited with the addition of variable quantities of low-quality and less-expensive vegetable oils is a challenging issue for analytical chemists. Analysis of…