A simple bioassay was designed for the detection of adenosine, a human metabolite involved in several physiological processes, on the basis of the functionalization of gold nanoparticles with DNA oligonucleotides selectively binding adenosine. The test was possible thanks to the selective and sensitive binding of adenosine by two DNA…

This textbook integrates chemistry and art with hands-on activities and fascinating demonstrations that enable students to see and understand how the science of chemistry is involved in the creation of art. It investigates such topics as color integrated with electromagnetic radiation, atoms, and ions; paints integrated with classes of matter,…

Often elementary and junior high teachers search for effective, inexpensive, and easy-to-understand science activities. This document was designed with those teachers and their students in mind. It provides hands-on science activities that focus around three components: (1) themes--broad, unifying ideas that pervade science, math and technology;…

Presents three experiments to introduce students to different kinds of chromatography: (1) paper chromatography; (2) gel filtration chromatography; and (3) reverse-phase liquid chromatography. Written in the form of a laboratory manual, explanations of each of the techniques, materials needed, procedures, and a glossary are included. (PVD)

This book contains innovative hands-on science laboratory activities that teach basic scientific method skills and are designed to be used directly with 4th- through 9th-grade students. The background materials and instructions included in each activity are written for students to work together in teams. Lab titles are: observation lab,…

Describes an experiment to illustrate the effect of food source and added nutrients (N) on microbial activity in the soil. Supplies include air-dried soil, dried plant material, sources of carbon and nitrogen, a trap such as KOH, colored water, and a 500-mL Erlenmeyer flask. Includes a diagram of an incubation chamber to demonstrate microbial…

Explores measuring the specific heat of a metal ball. The ball is heated to a known temperature then placed in cold water. Students measure the temperature gain of the water in this investigation of the principle of Conservation of Energy. As a second task, students make a precise determination of the density of the ball. (PVD)

This book contains innovative hands-on science laboratory activities designed to teach 4th- through 9th-graders about the environment. The background materials and instructions included in each activity are written for students to work together in teams. Activities cover subjects such as smog, symbiosis, soil, trees, ecosystems, recycling,…

Because of the daily impact of biotechnology, it is important that students have some knowledge and experience with biotechnology in order to enable them to deal with the issues that arise as a result of its implementation. The purpose of this workbook is to assist in the efforts to expose students to the concepts of biotechnology through hands-on…

Science projects are a great way for students to learn more about science as they search for the answers to specific problems. This book offers guidance and provides ideas for students as they plan experiments, find and record information related to the problem, and organize data to find answers to the problem. The 20 topics in this book suggest…

The "Robot Roadshow Program" is designed to increase the interest of elementary school children in technical disciplines, specifically math and science. The program focuses on children from schools categorized as rural or underserved, which often have limited access to advanced technical resources. We developed the program using robots…