Most biology students have the opportunity to look at protozoa under the microscopes or keep mealworms in a bowl. They may manipulate the heart rate of "Daphnia" or calculate the respiration of plants. They may even grow corn in the spring or keep fish and a small rodent or two. But once the class hamster grows testy from being awakened every…

The case-based computerized laboratory (CCL) is a chemistry learning environment that integrates computerized experiments with emphasis on scientific inquiry and comprehension of case studies. The research objective was to investigate chemical understanding and graphing skills of high school honors students via bidirectional visual and textual…

Laboratory investigations are essential for the effective teaching and learning of science. A school laboratory investigation ("lab") is an experience in the laboratory, classroom, or the field that provides students with opportunities to interact directly with natural phenomena or with data collected by others using tools, materials, data…

For science to be taught properly and effectively, labs must be an integral part of the science curriculum. The National Science Teachers Association (NSTA) recommends that all preK-16 teachers of science provide instruction with a priority on making observations and gathering evidence, much of which students experience in the lab or the field, to…

A local middle school requested that the Water Center of Advanced Materials for Purification of Water With Systems (WaterCAMPWS), a National Science Foundation Science and Technology Center, provide an introduction to pH for their seventh-grade water-based service learning class. After sorting through a multitude of information about pH, a…

The study was designed to find out students' anxiety towards the learning of chemistry, identify the factors that cause the anxiety, examine the disposition of sex towards the learning of chemistry and suggest ways to increase their taste towards the learning of the subject. Data for the study was obtained by administering a questionnaire to 300…

This study investigates opportunities for conducting electrical engineering experiments via the Internet rather than in an actual laboratory. Eighty-four French students of electrical engineering (semester 1, 2004) at Bordeaux University 1 participated in practical courses. Half of the students performed experiments in a laboratory while the other…

This study investigated the interaction between students' academic background (high school grades, standardized exams, and enrollment in advanced high school courses) and how much autonomy they reported having in high school science through labs and projects. The objective was to see if students who reported experiencing more or less self-directed…

A reactor to convert waste rubber tires to useful products such as CO and H2, was investigated in a university undergraduate design project. The student worked individually with mentorship from a faculty professor who aided the student with professional critique. The student was able to research the background of the field and conceive of a novel…

A low-cost tensile testing machine was built for testing polymeric films. This apparatus also allows for tear-strength and flexural tests. The experimental results, obtained from common-use materials, selected by the students, such as plastic bags, illustrate important aspects of the mechanical behavior of polymeric materials. Some of the tests…

In a 16-year study involving more than 4,800 students, fewer than 2% of students were caught cheating in introductory science classes. The most common type of cheating was plagiarism in lab reports (50% of incidents), followed by altering exams (41%) and submitting falsified lab data (9%). Cheating occurred among students earning all grades in the…

Molecular biological methods, such as the polymerase chain reaction (PCR) and gel electrophoresis, are now commonly taught to students in introductory biology courses at the college and even high school levels. This often includes hands-on experience with one or more molecular techniques as part of a general biology laboratory. To assure that most…

Enthalpy changes corresponding to the gas phase heats of dissociation of 12 organic halides were calculated using two semiempirical methods, the Hartree-Fock method, and two DFT methods. These calculated values were compared to experimental values where possible. All five methods agreed generally with the expected empirically known trends in the…

The US Navy is encountering fierce resistance at home over its plans to develop a laboratory in Honolulu at the University of Hawaii-Manoa. Proponents of the proposed facility assert it will bring millions of dollars to the campus, but critics question whether universities should engage in classified research and weapons development, and fear that…

The value of undergraduate research workshop to significantly enhance the quality of undergraduate science education was cited as one of the goals by the National Science Foundations (NSF) Strategic Plan. To address this strategic national need, the Council on Undergraduate Research (CUR) has granted an NSF course, curriculum, and laboratory…