This paper investigates the views of science and scientific activity that can be found in chemistry textbooks and heard from teachers when acid-base reactions are introduced to grade 12 and university chemistry students. First, the main macroscopic and microscopic conceptual models are developed. Second, we attempt to show how the existence of…

School-based assessment of science students' practical skills has two important roles--as a complement to written papers in public examinations and as a catalyst for enriching the science curriculum in schools. This article describes a quantitative study of the concerns chemistry and biology teachers experience as they engage in the process of…

Although the literature on both academic dishonesty and scientific misconduct is extensive, research on academic dishonesty has focused on quizzes, exams, and papers, with the virtual exclusion of the classroom laboratory. This study examined the distinctions undergraduate chemistry majors made between academic dishonesty in the classroom…

This paper attempts to improve students performance in chemistry through understanding of perceived technical terms. A sample consisting of 150 chemistry students from 15 secondary schools randomly selected from the five Esan Local Government areas of Edo State was used. One research question was raised and answered. A - 45 items questionnaire…

Young children do science exploration and observation every day in their play. They spontaneously engage in parts of the scientific inquiry process--wondering, asking a question, planning how to answer the question, documenting their work, thinking about what happened, and sharing their results with others. Conducting an entire experiment is…

In this article, the author describes several activities in personal care chemistry that provide middle school girls with opportunities to learn firsthand about science and engineering technology. These activities--the preparation of lip balm and hand lotion--are fun, easy to do, and make use of relatively inexpensive, safe, environmentally…

With the convenience of fast-food restaurants on almost every corner, many young people are consuming these foods too often. This article describes how high school students designed investigations to provide evidence that would help people make better dietary choices. Students investigated the ratio of omega-3 and omega-6 fatty acids in French…

In 2002 Shell Creek Watershed Improvement Group turned to the Newman Grove Public Schools' science department to help educate the public on water quality in the watershed and to establish a monitoring system that would be used to improve surface and groundwater quality in the creek's watershed. Nebraska Department of Environmental Quality provided…

Scientists often have to observe and study surfaces that are impossible or impractical to see directly, such as the ocean floor or the atomic surfaces of objects. Early in the history of oceanography scientists dropped weighted cables to the bottom of the ocean. By moving across the ocean at regular intervals and keeping track of how deep the…

A clinical study was designed and used to show the relationship of health and medicine, in a typical clinical scenario, where many chemical principles are involved and that an integrated knowledge of chemistry and biology is essential to the understanding, diagnosing and treating of illnesses. A case study would be a positive learning experience…

Greater access to scientific instrumentation, courses, and supporting materials through the Internet and Integrated Laboratory Network (ILN) has the potential to profoundly change the way in which instrumental sciences are taught. Increased access to instrumentation will provide better opportunities for students to learn and practice instrumental…

The Penn Department of Chemistry established a strong relationship with regional school districts to develop a unique program for current secondary science teachers, resulting in the June 2000 implementation of the Master of Chemistry Education (MCE) Program. The program has equipped teachers with the tools to conduct this inquiry, thus yielding…

The student-to-student chemistry initiative (SSCI) impact on elementary school students is examined quantitatively. Results reveal that the number of students attending the chemistry outreach demonstration performances sponsored by the small chemistry department increased more than five-folds.

Chromatography is a process by which mixtures can be separated or substances can be purified. Biological and chemical laboratories use many different types of chromatographic processes. For example, the pharmaceutical industry uses chromatographic techniques to purify drugs, medical labs use them to identify blood components such as cholesterol,…

This paper describes the analysis of data collected by Durham University's YELLIS project, over the period of 1999 to 2004. Included in this data was the degree to which pupils in England at the end of their secondary education "liked" or "disliked" different subjects, and their expected examination grades in these subjects.…