Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
~月 ~がつ month (of the year)jlpt5, toki
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
一年生 いちねんせい first gradergakkou
水力 すいりょく hydraulic power, water powermix
かわ riverjlpt5, shizen