that the first inhabitants in the archipelago who settled in Palawan and Batangas around 40 000 years ago have made simple tools or
weapons of stone which eventually developed techniques for _
sawing, drilling and polishing hard stones.
As the early Filipinos flourished, they have learned how to extract, ____ and refine
metals like copper, gold, bronze and iron from nature and consequently fashion them into tools and implements.
smelt
are
practicing science and technology in their everyday live