Climate change is a critical scientific and social issue of our time, yet the topic is not frequently discussed by the general public. Additionally, misconceptions about the topic persist. One important aspect of climate change is the greenhouse effect. This activity adds a greenhouse gas discussion to an existing module about molecular shape and…

In this activity, students observe chemical and physical properties of elements using an online periodic table, where these properties were shown numerically and by colors. Then the elements were divided into metals, nonmetals, and metalloids, and their periodic properties were visualized using statistical concepts such as normality, kurtosis,…

Aristotle's wheel paradox is a fascinating example of a classical puzzle that can pique a student's interest. The existing explanations in the literature are limited to discussions of the wheel trajectory; in this paper, we study the paradox from the viewpoint of motion decomposition, an approach we consider more intuitive. The motion of the point…

The electric field inside a uniformly charged long cylindrical shell is a standard example discussed in introductory university physics. The field is zero inside the cylinder; outside of the cylinder, the field behaves like a long wire at the center carrying the same amount of charge per unit length, analogous to that of a uniformly charged…

The purpose of this investigation was to evaluate the influence of science volunteering initiatives on the experiences of women and their subsequent inclination to continue volunteering. The research sought to examine the impact of particular social cognitive variables on their eagerness to partake in events and organizations. The study…

Background: There is an increasing need for pharmacists to incorporate more patient care targeting. Consequently, the productivity of pharmacy programs can be enhanced by evaluating the advantages and disadvantages of pharmacy curriculum. Objectives: To assess the beliefs, perceptions, and challenges of the College of Pharmacy--The University of…

This study aims to fill the gap in teacher education by examining the effect of design-based STEM activities on pre-service science teachers' design thinking skills and evaluating their design-based learning process experiences. An explanatory mixed design that includes both qualitative and quantitative data was used as the research method. The…

This research reports on implementing the integrated laboratory work to achieve effective learning in the biochemistry course. The integrated laboratory work includes three stages: pre-laboratory, lab work, and post-laboratory. In other words, the three stages include planning, implementing, and evaluating investigation activities in the…

This study investigated meaning-making of arrows in a representation of the greenhouse effect among 14-year-old secondary school students. Data was generated during Biology lessons where 74 students discussed how they interpreted a representation from the Swedish Society for Nature Conservation, which is an NGO that produce school material. The…

Scientific knowledge is a primary resource that scientists use to shape their activities to make sense of natural phenomena. Support for students' adaptation of scientific knowledge can enhance their ability to make sense of the natural world. This study aims to examine how ecological concepts are used when students plan field-based modeling of…

Here, we present a laboratory activity in which the students work on an analysis of a questioned document that was written with one out of five possible pens. As a forensics study, the activity applied chemistry and analytical chemistry tools to solve the case. The students were able to apply polarity and solubility concepts to select and discard…

A Finderscope is a low-power telescope with a relatively large field of view. It has the same line of sight as the main telescope, helping the main telescope easily find the target. One of the differences between a telescope and a finder is that the finder has crosshairs to aid in accurately pointing at a target. You can see the crosshairs and the…

Electrophilic aromatic substitution (EAS) represents an important class of reactions taught in the undergraduate organic chemistry curriculum. The EAS reaction of benzene and its substituted derivatives is generally described as proceeding through a carbocation (arenium cation) intermediate, and the regiochemistry of the product is heavily…

In conventional physics teaching, acceleration measurement is demonstrated using motion sensors and carts on inclined tracks, and relevant data are collected using specific professional software. This approach entails the connection of computers and interface boxes, and requires high cost and large space. Air-track carts can be used to perform…

Problems involving chains, cables, or ropes that are dropped, folded, or pass around pulleys attract ongoing interest, in part because they can become variable-mass situations if the chain is partitioned into sections for analysis. Less attention has been paid to trying to intentionally project the end of a string as far as possible. Here we…