PENGEMBANGAN LEMBAR KERJA SISWA MATERI ENERGI BERBASIS PREDICT-OBSERVE-EXPLAIN (POE) UNTUK MENUMBUHKAN KEMAMPUAN ARGUMENTASI ILMIAH SISWA SMP (THE DEVELOPMENT OF STUDENT WORKSHEET ENERGY BASED ON PREDICT OBSERVE EXPLAIN (POE) TO CULTIVATE STUDENTS’ SCIENTIFIC ARGUMENT ABILITY) - CAHYANI LESTARI, 1523025001 (2017)