G. . ABDUL RIDA PRISM Al ABOUDI and S. . . . . . . . . . . AYOUB SALEH AL – SHAMMARI, “the impact Showdown Strategy (uncover your papers) in the achievement of students in the fifth grade in the science”, eduj, vol. 1, no. 39, p. 20, May 2020, doi: 10.31185/eduj.Vol1.Iss39.1350.