Search

This book presents science activities investigating the chemical changes and reactions with powders that are used in baking. Activities include: (1) Mystery Powders; (2) Find the Fizz: Discover the Secret of Baking Powder; and (3) A Feast for Yeast and Cheese: Behold the Power of Chemistry. (YDS)

This teaching unit is designed to help students in grades 4-8 explore the concepts of algebra in the context of exploring the universe. The units in this series have been developed to enhance and enrich mathematics, science, and technology education and to accommodate different teaching and learning styles. Each unit consists of a storyline presenting the context for the problems to be solved, lists of the mathematics and science concepts addressed, background notes for the teacher, a list of teacher resources, and an activity complete with blackline masters. Also included are suggestions for extensions to the problems and their relationship to national mathematics standards. The story line for this unit is students learning how algebra is used to explore the universe. (MM)

The designing of multimedia chemistry courseware is a complex and challenging task for many instructional developers and writers especially in the initial stage of the prototype to be developed. As such, this paper provides insights gained into some practical design considerations in developing a multimedia courseware in chemical education at secondary school level. It concentrates on the early stage of the development process and specific design tips or guidelines based on practical pedagogical experiences in courseware design and storyboard. Among the seven major chemistry topics covered by the courseware as modules, two important modules, namely organic chemistry and experimental techniques are selected to illustrate some salient design issues that are related to certain important learning principles. The three understanding levels (macro, micro, and symbolic) related to learners' difficulties in learning chemistry will also be addressed in the development of the courseware. Implications for designing chemistry courseware, which emerge as a result of the design issues considered will also be discussed in the context of both the multimedia producer and writer. (Contains 21 references and 4 figures.) (Author/SAH)

This guide presents learning activities and lesson plans that integrate science with technical and vocational areas. Activities and plans are organized under broad headings such as Environmental Science and Acid Rain Research; Criminal Justice, Chemistry, and Narcotics; Children's Education and Services; Cosmetology; and Health Professions. Students are able to explore the collection and testing of rainwater, use narcotic testing modalities, develop a science activity appropriate for elementary-aged children, investigate the general characteristics of their own hair, and test several brands of antacid tablets for their ability to neutralize excess stomach acid. All activities include procedures, materials lists, graph grids, and data sheets. (DDR)

This publication issues a challenge to students to collect data in a nationwide analysis of water hardness. Background information on the chemistry of hard water is presented using a cartoon format, and each of the four activities contains an explanation about the chemistry illustrated in the activity. The effect of hard water on soap, the effect of calcium ions in water, the chemistry of a test strip, and the creation of a supersaturated solution are among the topics of the experiments. The publication also includes details about participation in the nationwide study and National Chemistry Week. (DDR)

This curriculum unit on the ozone is intended for high school students and contains sections on environmental science and chemistry. It has been structured according to a learning cycle model and contains numerous activities, some of which are in a cooperative learning format. Skills emphasized include laboratory procedures, experimental design, data analysis, accessing information, critical thinking, systems modeling, and communicating results. The environmental science unit contains the following topics: location of ozone in the atmosphere; sources of ozone; effects of ozone pollution; and helping to reduce ozone pollution. The chemistry unit includes the following topics: chemical reactions that lead to ozone pollution and smog; identifying solutes and solvents in a homogeneous mixture; measurements of concentrations of very dilute solutions; absorption of ultraviolet light by stratospheric ozone; chemical reactions that lead to ozone depletion; and ways that reaction rates are influenced. The units also contain multiple choice tests, attitude surveys, and essay questions. (JRH)

This guide is designed to provide adult learners with hands-on activities and demonstrations to develop skills in physical science. The guide consists of four units on the following topics: introduction to chemistry, introduction to atomic structure, chemical formulas and equations, and common chemicals. Each unit contains some or all of the following: behavioral objectives, list of supplies needed for the unit, definitions of vocabulary, concepts covered in the unit, background information needed for the activities, activity sheets, and answer keys. Each activity sheet includes a list of materials needed for the activity, a detailed procedure, question(s) pertaining to the activity, and explanation/discussion of the reaction occurring during the activity. The activities presented in the curriculum may be incorporated into any science program with only slight modifications, and most activities require only common items that are readily available in kitchens and/or grocery stores. Concluding the guide are a pretest/posttest and answer key, and report describing the curriculum development project. Contains 15 references. (MN)

This combined student workbook and instructor's guide contains nine units for inplant classes on basic chemistry for employees in the cement industry. The nine units cover the following topics: chemical basics; measurement; history of cement; atoms; bonding and chemical formulas; solids, liquids, and gases; chemistry of Portland cement manufacture; control, analysis, and testing; and organic chemistry and fuels. Unit objectives, tests, and answer keys are included in the book. (KC)

This lesson plan is intended for use in conducting classes on the effect of pH on plant growth. Presented first are an attention step/problem statement and a series of questions and answers designed to convey general information about soil pH and its effect on plants. The following topics are among those discussed: acidity and alkalinity; the meaning of the numbers on the pH scale, the major components of soils, factors affecting soil pH, the effect of geographic area on pH, the effect of pH on plant growth, sources of plant nutrients, the relationship between soil pH and nutrient availability, the relationship between pH level and bacteria in soil, and methods of increasing and decreasing soil pH. Also provided are the following: a glossary of pertinent scientific terms, 4 worksheets, answers to the worksheets, 2 quizzes, answers to the quizzes, 12 overhead transparency masters, and a lesson plan for teaching students to test the pH of soils. Included in the lesson plan are an objective, list of equipment needed, detailed steps for completing the activity, and student activity record sheet. (MN)

A series of science experiments and activities designed for secondary school students taking biology, chemistry, physics, physical science or marine science courses are outlined. Each of the three major sections--chemistry, biology, and physics--addresses concepts that are generally covered in those courses but incorporates aspects of marine science. Within each section, major concepts such as density, pH, photosynthesis, respiration and sound are supported by student activities. Each activity contains background reading materials, a materials list, procedures for completing the activity, and extension ideas. At the end of each concept division, references, resources, and education competencies are listed. The chemistry section includes activities on chemical reactions in the marine environment; density dynamics and estuaries; pH, equilibrium and ocean buffering; and behavior of gases in the marine environment. The biology section includes activities on new discoveries; biochemistry; animal adaptations; geologic history and the oceans; seashells and scientific names; behavior of ocean creatures; and man and the ocean. The physics section includes activities on the motion of the ocean, sound, and light in the sea. (KR)

This book has been written to help teachers learn with their students and discover the advantages of using their own school ground for field trips. Since every school ground is different and since all field trips should be a part of classroom experiences, this book can only suggest possibilities that the teacher can select and adapt as a starting point. Each subject is introduced with a page or two of background information on the general topic. Next, some related classroom activities are suggested as a reminder that field trips need an introduction and and a follow-up in the classroom. There is also a section on teacher preparation. A cross-referenced listing of field trips for hard-topped school grounds is given at the back of the book. There is also a listing of trips that can be taken on completely hard-topped school grounds with plantings only in concrete cracks and broken concrete areas. An annotated list of supplementary materials includes books, recordings, project materials, guides, and sources of supplies. Reading levels, as well as the subjects for which each material can be used, are also indicated. Topics include trees, leaf coloration, buds, seeds, grasses, dandelions, vertebrate animals, birds, animal tracks, insects and other arthropods, earthworms, characteristics of living things, requirements for life, microhabitats, population explosion, succession, physical and chemical change, sound, heat and light, geology, weather and climate, solar system, and ecology. (KR)

Presents laboratory experiments to demonstrate the pH properties of different buffer solutions. (YDS)

Describes a module that combines a traditional hex nut activity with a sugar cookie activity to provide students with an in-depth understanding of balancing chemical equations. (DDR)

Presents a student laboratory investigation that tests hypotheses about the uptake of phosphate ions by carrots and yeast. (ASK)

Illustrates how a novel problem of chemical equilibrium based on a closely related sequence of items can facilitate students' conceptual understanding. Students were presented with a chemical reaction in equilibrium to which a reactant was added as an external effect. Three studies were conducted to assess alternative conceptions. (Author/SAH)

Presents a multidisciplinary activity for reviewing general chemistry concepts in which students make their own tie-dye cloth. Explores the traditional cultures and customs of Nigeria. (ASK)

Describes a science festival on human body systems and physical sciences for middle school students. Introduces the exhibits and the procedures. (YDS)

Presents a chemistry activity that introduces students to one type of chemical bond by developing the integer operation concept of zero pairs. Leads to an activity of combining drops of 0.3 molar solutions to form six different colored precipitates from five solutions. (ASK)

Presents a science experiment in which students test the buffering capacity of household products such as shampoo, hand lotion, fizzies candy, and cola. Lists the standards addressed in this experiment and gives an example of a student lab write-up. (YDS)

Describes a constructivist chemistry laboratory approach based on students' personal experiences where students had the opportunity to develop their own experimental processes. Points out both the fruitfulness and difficulties of using a graduate student as a teaching assistant. (YDS)

This booklet is one of a set of eight designed to be used in a self-paced introductory chemistry course in conjunction with specified textbooks and computer-assisted instruction (CAI) modules. Each topic is introduced with a textbook reading assignment and additional readings are provided in the booklet. Also included are self-tests (and answers), CAI module assignments, and suggested breakpoints for student-teacher consultations. Supplementary learning materials, including filmstrips, are also suggested. Each booklet contains specific cognitive objectives to be met by completion. This booklet covers seven major topics concerning chemical reactions: equations, molecular weight, stoichiometry, percentage composition, reaction types, redox, and rates. (MH)

This study guide is part of a program of studies entitled the Science and Engineering Technician (SET) Curriculum developed to provide a framework for training technicians in the use of electronic instruments and their applications. This interdisciplinary course of study integrates elements from the disciplines of chemistry, physics, mathematics, mechanical technology, and electronic technology. This guide provides the content for the chemistry component of the curriculum including: (1) solutions and concentrations; (2) chemical equations; (3) electrochemistry; (4) gas laws; and (5) organic materials. (Author/SK)

This student module on recognizing job health hazards is one of 50 modules concerned with job safety and health. This module presents the four general categories of environmental conditions or stresses: chemical, physical, biological, and ergonomic. Following the introduction, 14 objectives (each keyed to a page in the text) the student is expected to accomplish are listed (e.g., Identify four biological health hazards). Then each objective is taught in detail, sometimes accompanied by illustrations. Learning activities are included. A list of references and answers to learning activities complete the module. (CT)

This student module on fire prevention and emergency procedures is one of 50 modules concerned with job safety and health. This module discusses the chemistry of fire and the methods for extinguishment, along with the steps necessary for emergency action. Following the introduction, 10 objectives (each keyed to a page in the text) the student is expected to accomplish are listed (e.g., List the basic requirements for an emergency action plan). Then each objective is taught in detail, sometimes accompanied by illustrations. Learning activities are included. A list of references and answers to learning activities complete the module. (CT)

This course in chemistry for energy technology is one of 16 courses in the Energy Technology Series developed for an Energy Conservation-and-Use Technology curriculum. Intended for use in two-year postsecondary technical institutions to prepare technicians for employment, the courses are also useful in industry for updating employees in company-sponsored training programs. Comprised of five modules, the course is designed with a special emphasis on all aspects of chemistry as it relates to the work of an energy technician. Basic chemical information and techniques are presented. (Chemistry for Energy Technology II is available separately as CE 030 777.) Written by a technical expert and approved by industry representatives, each module contains the following elements: introduction, prerequisites, objectives, subject matter, exercises, laboratory materials, laboratory procedures (experiment section for hands-on portion), data tables (included in most basic courses to help students learn to collect or organize data), references, and glossary. Module titles are Safety in Chemical Operations; Structure of Matter; Chemical Equations and Calculations; Refrigeration, Gases, and Air Pollution; and Solutions. (YLB)

This document is an instructional module package prepared in objective form for use by an instructor familiar with water stabilization and deposition and corrosion control in a water supply system. Included are objectives, an instructor guide, student handouts and transparency masters. The module considers water stability, water chemistry, deposition, deposition control, corrosion and corrosion control. This is the first level of a two module series. (Author/RH)

This document is an instructional module package prepared in objective form for use by an instructor knowledgeable in the chemistry of water stabilization and familiar with control of deposition and corrosion in a water supply system. This is the second level of a two module series. Included are objectives, instructor guides, student handouts and transparency masters. The module considers the stability analysis of a water, the chemistry of scale formation, and the chemistry of corrosion and corrosion control. (Author/RH)

This document is an instructional module package prepared in objective form for use by an instructor familiar with the operation and maintenance of a chemical precipitation softening system. Included are objectives, instructor guides, student handouts and transparency masters. This is the third level of a three module series. This module considers the application of process theory and laboratory data for optimal process control, troubleshooting process and design problems and sludge handling and disposal alternatives. (Author/RH)

This document is an instructional module package prepared in objective form for use by an instructor familiar with chemical precipitation softening. Included are objectives, an instructor guide, student handouts and transparency masters. This is the first level of a three module series and is designed for students with little or no operating experience. The module considers the principles, components, operation, maintenance, laboratory control and safety for chemical precipitation softening systems. (Author/RH)

This document is an instructional module package prepared in objective form for use by an instructor familiar with general inorganic chemistry. Included are objectives, instructor guides and student handouts. The module considers matter, compounds, chemical equations, solutions, chemical equilibrium, acids and bases and solubility equilibria. (Author/RH)

This document is an instructional module package prepared in objective form for use by an instructor familiar with inorganic and general organic chemistry as applied to water and wastewater treatment. Included are objectives, instructor guides, and student handouts. The module contains material related to chemical reactions in water solutions, organic and inorganic compounds, coagulation, pesticides, heavy metals and radioactivity. (Author/RH)

This document is an instructional module package prepared in objective form for use by an instructor familiar with pH, measurement of pH with a pH meter and maintenance of pH meter electrodes. Included are objectives, instructor guides, student handouts and transparency masters. This module considers the definition of pH, types of electrodes and their components, electrode maintenance, and procedures for using a pH meter to determine the pH of a water or wastewater sample. (Author/RH)

This military-developed text contains the second section of a four-part course to train environmental support specialists. Covered in the individual course blocks are operative principles of water treatment plants (principles of water treatment plants, the clarification process, water systems filters, chemical disinfection, taste and odor control, color control, fluoridation and defluoridation, water distribution systems, and internal corrosion and scale) and specialized water treatment (ion exchangers and controls, electrodialysis demineralization, specialized water treatment, distillation, and field water purification). This section contains both teacher and student materials. Printed instructor materials include lesson plans with an outline of teaching steps and a plan of instruction detailing the units of instruction, the duration of the lesson, objectives, and supportive materials needed. Among the student materials provided are two study guides containing objectives, assignments, text readings, and review questions; two workbooks containing exercises and lab work; and a manual on servicing ion exchangers. (MN)

Much of the innovation in the use of microcomputers in education has come from classroom teachers who are using computers with students. In October, 1987, forums were held for secondary school science teachers who were using computers in their science classes. Within this document are some of the lesson plans that the participating teachers brought to the sessions. The lessons outlined in the booklet include computer applications for: (1) physical science laboratories; (2) stratigraphy; (3) teaching about significant digits; (4) weather forecasting; (5) chemical reaction synthesis; (6) creating a database about tides; (7) science laboratory tools which measure heat, light, and temperature; and (8) a teacher-made program dealing with laboratory calculations. The descriptions contain the name and address of the contributor, the target audience of the lesson, the hardware and software needed, and a brief statement about the purpose and objectives of the lesson. Some of the lessons also include a listing of the computer courseware and some sample student worksheets. (TW)

This instructor's resource guide, one in a series of products from a project to develop an associate degree program for paraprofessional rural family health promoters, deals with teaching chemistry for the life sciences. Covered in the first section of the volume are the role of chemistry in rural health promotional training, general objectives and recommendations for the instructor, laboratory recommendations, and references and suggested course tests. A series of unit overviews dealing with the following topics are presented: matter and measurement; the composition of matter; chemical bonding; compounds and chemical change; gases and respiration; water; solutions; acids, bases, and salts; nuclear chemistry and radiation; organic chemistry; hydrocarbons; oxygen derivatives of hydrocarbons; fats; carbohydrates; and proteins. Also included are a series of laboratory experiments dealing with dentistry and metric measure, chemical reactions and factors that affect their rate, the Charles Law, hydrates, principles of acid and base neutralization, radioactivity, reactions of alcohol, aspirin and oil of wintergreen, determination of Vitamin C, and powdered milk versus whole milk. A discussion of methods and materials for use in student evaluation and a description of other materials in the Family Home Health Training Program series conclude the guide. (MN)

This sourcebook for chemical activities is designed to be used as a student laboratory book for both junior and senior high school students. The student's role as a knowledgeable consumer and informed citizen is stressed. Each activity includes a list of needed materials, procedures, reactions, questions, and notes for the teacher which include background information, teaching tips, and answers to the questions. General areas of consideration include chemistry of matter, chemistry of atoms and molecules, chemical reactions, chemical energy and rates of reaction, chemistry around the house, chemistry and the environment, biochemistry, chemistry of living things, chemistry of foods, chemical detectives, tools and techniques of the chemist, and kitchen chemistry. Included is a cross reference of activities by chemical topics, laboratory skills and by major topics of "Chemistry in the Community" (ChemCom). Also included is a listing of useful resources with addresses as well as several charts of chemistry information. (ML)

This book contains 112 classroom demonstrations intended to be used with any introductory chemistry program. These demonstrations were selected in an effort to provide simple, safe, effective and enjoyable experiences for the class. In addition, they are intended to be used to introduce many of the major concepts in chemistry. The demonstrations involve color changes, gas evolution, precipitate formation, smoke, fire, and other obvious or dramatic chemical changes. The guide is organized into 11 major sections including: (1) introducing chemistry; (2) physical changes; (3) reactions involving gases; (4) reactions of some elements; (5) transition metals and complex ions; (6) chemical bonding; (7) energy changes; (8) solutions and solubility; (9) kinetics and equilibrium; (10) acids and bases; and (11) oxidation and reduction reactions. Appendices include an equipment and reagent list and detailed safety and disposal instructions. (TW)

This book contains 108 classroom demonstrations intended to be used with any introductory chemistry program. These demonstrations were selected in an effort to provide simple, safe, effective and enjoyable experiences for the class. In addition, they are intended to be used to introduce many of the major concepts in chemistry. The demonstrations involve color changes, gas evolution, precipitate formation, smoke, fire, and other obvious or dramatic chemical changes. The guide is organized into 11 major sections including: (1) properties of atoms; (2) gases; (3) solubility and solutions; (4) acids and bases; (5) energy changes; (6) equilibrium; (7) kinetics; (8) oxidation-reduction; (9) electrochemistry; (10) smoke, fire, and explosions; and (11) other chemical reactions. Appendices include an equipment and reagent list and detailed safety and disposal instructions. (TW)