Correct Evidence: A precipitate forms, Odor formation, Color change, Sounds produced, Bubbles or gas produced, Fire or light is produced, New substance is created, Incorrect Evidence: Substance evaporates, Changing state of matter, Substance is absorbed, Dissolving one substance into another, Nothing new is created, Gas sample expands when heated, Change in shape,

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟