Vocabulary consisting only from characters you are able to read
水力
すいりょく
hydraulic power, water powermix
上る
のぼる
(1)to rise, to go up, to come up, to ascend, to be raised, (2)to enter (esp. from outdoors), to come in, to go in, (3)to enter (a school), to advance to the next grade, (4)to get out (of water), t godan, jlpt3, verb, vintrans
耳にする
みみにする
to hear, to hear by chance, to hear by accident, to catch (the sound)suru
三日
みっか
three days, the third day of the monthjlpt5, toki
上がる
あがる
(1)to rise/to go up/to come up/to ascend/to be raised/ (2)to enter (esp. from outdoors)/to come in/to go in/ (3)to enter (a school)/to advance to the next grade/ (4)to get out (of water)/to come asho godan, verb, vintrans