6 1970s Science Curriculum Improvement Study Books SCIS

This auction is for an assortment of six SCIS-Science Curriculum Improvement Study 9 1/4"x9 1/4" softcover books in good condition with some minor creases off the spines, and spotting on some pages.

These books were published by Rand McNally and Company in the early 1970's.

The books in this assortment are:

"Environments"

"Relative Position and Motion"

"Models-Electric and Magnetic Interactions"

"Material Objects"

"Energy Sources"

"Communities"