physicist - matter and energy, geneticist - the inherited characteristics of living things, mathematician - numbers, shapes and space, astronomer - planets, the universe space, chemist - the characteristics of substances and how they react , biologist - all natural life, psychologist - the human mind and the way it works, geologist - the Earth`s surface,

Science

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟