A handful of technological episodes: fire, wheel and axle, Industrial Revolution, Faraday's discovery of electromagnetic induction, the transistor, and the digital age, have historically altered humanity. We are now witnessing/participating in the next transformational technology: 3D printing. Although dating back nearly 30 years, the technology…

The emergence of 3D printing has dramatically advanced the availability of tangible molecular and extended solid models. Interestingly, there are few nanostructure models available both commercially and through other do-it-yourself approaches such as 3D printing. This is unfortunate given the importance of nanotechnology in science today. In this…

Paper-based microfluidic devices (µPAD) are a burgeoning platform of microfluidic analysis technology. The method described herein is for use in undergraduate and high school chemistry laboratories. A simple and convenient µPAD was fabricated by easy patterning of filter paper using a permanent marker pen. The usefulness of the device was…

Presents a quantitative analysis of the "figure 8" found on the globes of most earth science textbooks, using an exercise of year's eccentric shadow plotting techniques. Indicates that the exercise can serve to change a student's abstract "figure 8" to his real learning experience. (CC)

Discussed are the construction and uses of a version of a photoelectric colorimeter by students. Included are materials needed and four experiments which use the equipment. Sample results are shown. (CW)

Regional workshops sponsored by the National Institute for Educational Research (Japan) were held to strengthen national efforts in the development of elementary science aids/materials. This document provides: (1) guidelines for the development of appropriate and low-cost aids for science instruction; (2) inventory of aids; (3) synthesis of…

Illustrates ways in which science activities that utilize culturally familiar materials can help bilingual students gain insight into the scientific concepts which underlie the functioning of cultural artifacts and tools. Specifically indicates how nine categories of materials familiar to Chinese and Hispanic cultures can be used in science…

There are ways in which elementary teachers in general and rural elementary teachers in particular can overcome inadequate science preparation and can upgrade the science program resources of their small schools. Parents and children should be involved in obtaining free and inexpensive science-related materials throughout the year. These can be…