Muundaji Jorge Vallin Mseto wa Umri Kabla ya 7 7-8 9-10 11-12 13-14 15-16 Zaidi ya 16 Mawazo Makuu ya Sayansi Mageuzi ya nishati Vikosi vya msingi Mada ya Somo Nguvu na Usogevu Fizikia Lugha Kiingereza Muda wa Wastani wa Kusoma Dakika 45 Leseni Creative Commons Attribution (CC BY) Hufanya kazi nje ya Mtandao No Please Login to Rate and Comment PoorNot so pooraveragegoodvery good No votes have been submitted yet. View and write the comments No one has commented it yet.
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