1 Physical changes only change the appearance of a substance, not its chemical composition. 2  Chemical changes cause a substance to change into an entirely substance with a new chemical formula.  Chemical changes are also known as chemical reactions.
hand drawn definition, hand drawn meaning | English dictionary. Search also in: Web News Encyclopedia Images. hand. n. 1. a the prehensile part of the body at the end of the arm, consisting of a thumb, four fingers, and a palm. b the bones of this part. Related adj â manual. 2 the corresponding or similar part in animals. 3 something resembling this in shape or function.
Drawing usually means using drawing instruments, from compasses to computers to bring precision to the drawings. This is just an introduction. Don't worry about understanding every detail right now-just get a general feel for the language of graphics.