Unified chemistry for high school : with simple herbal remedies and compost preparation. / Sigrid S. Rodolfo.

particular attention is given to medicines, fertilizers and pesticides which have come to have some troublesome effect on the environment and on our body.

This textbook has two main portions. Units 1 to 7 present the mostbasic lessons in beginning chemistry. Units 8 to 10 are for reference purposes, to round out presentation of the subject. Through Unit 8 the student may be acquianted with those common elements that occur only in compound form. Unit 9 presents information about some commonly encountered compounds of carbon, and provides an introduction to organic chemistry. An array of products are considered in Unit 10 to compare commercial items from technology to what is available elsewhere