Vocabulary consisting only from characters you are able to read
成る
naru
(1)(uk) to become, to get, to grow, to be, to reach, to attain, (2)to result in, to prove to be, (3)to consist of, to be composed of, (4)to succeed, to be complete, (5)to change into, to be excha godan, verb, vintrans
図説
zusetsu
illustration, diagrammix
中世
chuusei
Middle Ages, mediaeval timestoki
気温
kion
atmospheric temperaturetenki