ساينس الصف الثاني الاعدادي – الفصل الدراسي الاول ساينس تانية اعدادي – ترم اول In This part we will study : The Layers of atmospheric envelope There is a region between each two successive layers. In these regions, temperature remains constant. 1. Tropopause : It is the region between troposphere and stratosphere . 2. Stratopause : It is the region between stratosphere and mesosphere . 3. Mesopause: It is the region between mesosphere and thermosphere . 1. Troposphere : – It means the disturbed layer, because all atmospheric turbulences (weather changes) take place in it. Location – It is the first layer of atmospheric envelope . How to answer problems concerning atmospheric temperature in troposphere layer : 1.Temp. At top = temp. at down – (height ×6.5) 2. Temp. At down = temp. at top + (height ×6.5) 3. Height = temp. at down – temp. at top ÷ 6.5 لمتابعة مستر احمد الباشا وكل ما يخص الساينس : جروب الفيس بوك http://bit.ly/2Of1mcN صفحة الفيس بوك http://bit.ly/2Gq5xMo بالتوفيق مستر احمد الباشا