The measurement of the infrared rotation-vibration spectrum of HCl(g) is a common experiment in the physical chemistry laboratory, which allows students the opportunity to explore quantization of rotational states in diatomic molecules. It is found that the CO2 vibration-rotation spectrum if used as an addition to the HCl experiment would give the…

An experiment developed for an undergraduate organic chemistry laboratory course that can be used to introduce the catalytic hydrogenation reaction, catalysis electrochemical principles and gas chromatography is presented. The organic compounds hydrogenated by the electrocatalytic hydrogenation (ECH) process were styrene, benzaldehyde and…

Behavior in a psychology laboratory?constrained by the need to efficiently replicate tasks, record individual responses, and avoid contamination from external factors?is different in systematic ways from behavior within an everyday environment where similar tasks are undertaken and problems solved. This article describes a program of research that…

In this article, a trainee teacher explores the value of using novel digital equipment with very young children. She describes a classroom-based study designed to address these questions: (1) How do very young children react to and engage with the digital microscope in a science-based activity?; (2) How would the foundation-stage leader,…

This article refers to a framework to teach the philosophy of science to prospective and in-service science teachers. This framework includes two components: a list of the main schools of twentieth-century philosophy of science (called "stages") and a list of their main theoretical ideas (called "strands"). In this paper, I show that two of these…

The discovery of the near isochrony of the simple pendulum offered the possibility of measuring time intervals more accurately than had been possible before. However,the fact that it was not strictly isochronous for all amplitudes remained a problem. The cycloidal pendulum provided this strict isochrony and, over a thirty year period from 1659 the…

Experiments with the simple pendulum are easy, but its motion is nevertheless confounded with simple harmonic motion. However, refined theoretical models of the pendulum can, today, be easily taught using software like CALCODE. Similarly, the cycloidal pendulum is isochronous only in simplified theory. But what "are" theoretically equal intervals…

Background: Considerable evidence suggests that structured abstracts in scientific journal articles are more informative than traditional ones, but no one (to our knowledge) has written about asking psychology undergraduates to write structured abstracts for their laboratory reports. Aim: Our aim was to assess whether or not the quality of such…

Episodic memory in humans is the conscious recollection of a past event. Animal models of episodic-like memory assess the memory for "what" happened, "where" it happened, and either "when" it happened, or in "which" context it happened, although recollection on such tasks is often difficult to measure. Here we present the first evidence of…

In tactile learning, sucrose is the unconditioned stimulus and reward, which is usually applied to the antenna to elicit proboscis extension and which the bee can drink when it is subsequently applied to the extended proboscis. The conditioned stimulus is a tactile object that the bee can scan with its antennae. In this paper we describe the…

Many involved with writing centers--whether faculty-led, specialist-led, student-led, or some other configuration--know the power of having created, or having been part of, a writing community. But a genuine writing community--the kind of community which a significant percentage of students, faculty, and others make use of and benefit from--is not…

In this article, the author presents a poem on the distribution and adaptation of blue-green algae (Cyanobacteria). The poem describes some of the diverse habitats of cyanobacteria including examples from extreme and unique environments such as hot springs, and polar bear hair. The poem also describes some of the adaptations of cyanobacteria…

In most general chemistry and introductory physical chemistry classes, critical point is defined as that temperature-pressure point on a phase diagram where the liquid-gas interface disappears, a phenomenon that generally occurs at relatively high temperatures or high pressures. Two examples are: water, with a critical point at 647 K (critical…

University Park Campus School (UPCS), which opened in 1997, is among the most innovative aspects of Clark's nationally prominent multimillion-dollar revitalization effort to clean up Worcester's deteriorating Main South neighborhood and encourage staff and faculty to buy homes there. The school, like the broader initiative, is the product of a…

A wonderful way to engage science students is to make them think a demonstration is not turning out the way the instructor intended. Basically, throw a little humor into teaching, and they will be hooked. Described in this article is a demonstration that uses Milk of Magnesia (MOM) as a visual and humorous method to review equilibrium chemistry…