Pace work(Science)31.03

Wednesday, the thirty-first of March. Тема: Небо. Хід уроку. T:Good morning! Today we will learn about the sky. ⦁ Фонетична зарядка. T: Let’s review the sound [æ ]. 1.has, pan, cat, bat, rat, fan, plan, rabbit; 2.had, map, add, hat, tap, as, tap, fat; 3.bag, jam, fat, cap, man, had, at, animals; 4.A black cat sat on a mat and ate a fat rat. 5.Grandma sat patting the black cat she had on her lap. 6.Can a canner can-can. ⦁ Основна частина уроку. 1.Введення та активізація нових лексичних одиниць. T: write down these words in your vocabularies. A sky A sun Blue A moon A light To move Different A color T: make up the sentences with these words. 2.Читання тексту. T: Now let’s read and translate the text. While reading underline the new words. The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air. However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue. As you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white. 3.Виконання післятекстових прав. Post-reading. T: Write True or False. The sky is blue. There tree in the sky. There moon and stars in the sky. The color of the sky near the horizon appears paler or white. Less blue light reaches your eyes. III. Заключна частина. 1.Підведення підсумків уроку. T: Today we have learnt about the sky. What did you remember?