Geologic Materials
The majority of geological data come from research on solid Earth materials. These typically fall into one of two categories: rock and unconsolidated material.
Read more about this topic: Geology
Famous quotes containing the word materials:
“Young children learn in a different manner from that of older children and adults, yet we can teach them many things if we adapt our materials and mode of instruction to their level of ability. But we miseducate young children when we assume that their learning abilities are comparable to those of older children and that they can be taught with materials and with the same instructional procedures appropriate to school-age children.”
—David Elkind (20th century)