*YUMINE Toshiki¹, SUZUKI Toshikazu², TABUCHI Yu³, NAKANISHI Dai⁴, NOGAMI Seiji ⁵, MATUSHITA Hutoshi⁶, YOKOYAMA Kazuya⁵ (1.Chiben Gakuen Wakayama elementary school, 2.Susami Elementary School in Susami town, 3.Shinjo Junior high School in Tanabe city, 4.Wakayama University Elementary school, 5.Wakayama city science museun for children, 6.Wakayama Biological Club )