We introduced a microfluidic paper-based analytical device ([mu]PAD) to undergraduates majoring in nutrition education using a modified acid-base titration on paper microzones. After designing experiments for sample analysis using micro acid-base titration, students fabricated the devices and implement the experiment as designed. Then they…

The antioxidative capacity of phytochemical compounds is often discussed in life science courses (to prevent or slow cancer) and food science courses (to prevent the oxidation of sensitive ingredients). Thus, we developed a laboratory experiment where the photochemical reaction of lightsticks is used to qualitatively demonstrate the antioxidative…

This study investigated the learning dimensions that occur in physical and virtual inquiry-based lab investigations, in first-year secondary chemistry classes. This study took place over a 2 year period and utilized an experimental crossover design which consisted of two separate trials of laboratory investigation. Assessment data and attitudinal…

Hands-on, inquiry-based, and relevant to every student's life, "Gourmet Lab" serves up a full menu of activities for science teachers of grades 6-12. This collection of 15 hands-on experiments--each of which includes a full set of both student and teacher pages--challenges students to take on the role of scientist and chef, as they boil,…

The aim of this project is to study the quality of the discussions in groups of students during laboratory work. The project builds on a study of the role of communication in science classrooms with students aged 14-15 years. An intervention with role-playing for example reporting to another group is carried out to foster discourses that focus…

Forensic science courses encompasses the disciplines of biology, chemistry, mathematics, and physics, which provides an opportunity for students to become engaged in all content areas within one course. The inquiry-based learning environment allows visualization of results almost immediately, facilitating student interest. The laboratory…

Presents a set of laboratory experiments that can assist students in the detection of carbon dioxide. Offers a variation of the supported drop method of carbon dioxide detection that provides readily visible positive results. Includes background information on carbon dioxide. (ML)

Describes experiments, demonstrations, activities and ideas relating to various fields of chemistry to be used in chemistry courses of secondary schools. Three experiments concerning differential thermal analysis are among these notes presented. (HM)

Demonstrations of Boyle's Law and of the relationship of gauge pressure and atmospheric pressure are presented. (BB)

Reported are observational limits of detectability for several single stimulus and multi-stimuli observation tasks in secondary level chemistry. Provided are tables of actual results obtained including type of observation, chemical system used, method of determining stimulus magnitude, and observational thresholds. (Author/YP)

Discusses the development of concentration and organizational skills, patience, self-discipline, attention to detail, and appreciation for error analysis through an expanded titration project. Describes the various activities in the extended project and the materials and instructional support needed. Stresses the advantage to students in their…

This freshman chemistry lab relates stoichiometric problems to real situations. It requires students to measure the Fe impurity in reagent grade calcium chloride. (BB)

Presents an experiment in which students prepare salt-water taffy, and concrete props for teaching weak acids and bases. (SL)

Contends that demonstration lecturing is a valuable science teaching approach. Highlights the benefits of this technique and identifies sources of information for teachers. Provides a listing of popular science lectures suitable for chemistry classes. Describes in detail the "Major of Chemistry" demonstration. (ML)

Presents an experiment for determining the pH of shampoo. (SL)