Inclined plane, Wheel and axle, Pulley, Screw, Lever, Wedge, Complex machine (lever and wedge), Complex machine (multiply the force on the object to be cut), Complex machine (pulley, wheel and axle and screw), Pathogen, Microorganism, Allegern, Bacteria, Virus, Fungis, Parasites, Allergen, Disease: Virus, Disease: Bacteria, Disease: Fungus, Disease: Parasite

Science's Test

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟