ERIC Number: ED235043
Record Type: RIE
Publication Date: 1982
Reference Count: 0
Natural Dyes. Third World Science.
Jones, Natalie; Hughes, Wyn
This unit, developed by the Third World Science Project, is designed to add a multicultural element to existing science syllabi (for students aged 11-16) in the United Kingdom. The project seeks to develop an appreciation of the: boundless fascination of the natural world; knowledge, skills, and expertise possessed by men/women everywhere; application of knowledge and skills to solve the practical problems of everyday life; impact of modern technology in the world; and the influence of the cultural background on the perception of knowledge, problems, and solutions. The unit consists of six sections and list of references. Topic areas considered include: historical consideration of the use of color; natural dyestuffs in use today and their resources; and plant pigments (chlorophylls, carotenoids, anthocyanins, and anthoxanthins). Activities presented include: chromatographic analysis of plant pigments; preparation of colored solutions from natural sources; investigation of acidity/alkalinity; and an investigation of dye uptake (preceded by a discussion of dying fabrics). The unit concludes with a brief outline of tie-dying and print processes. (JN)
Descriptors: Botany, Chemistry, Chromatography, Color, Cultural Activities, Developing Nations, Elementary School Science, Foreign Countries, Intermediate Grades, Laboratory Procedures, Science Education, Science Experiments, Secondary Education, Secondary School Science, Wildlife
Centre for World Development Education, 128 Buckingham Palace Road, London SW1W 9SH England.
Publication Type: Guides - Classroom - Teacher
Education Level: N/A
Audience: Practitioners; Teachers
Sponsor: Training Services Agency, London (England).
Authoring Institution: University Coll. of North Wales, Bangor (United Kingdom). School of Education.
Identifiers: Dyes; Third World Science Project; United Kingdom