1 – Amaliy mashg`ulot. Mavzu

I shning borishi: bug`latgich kosachaga sham yoki quruq yonilg`i bo`lagini o`rnatib yondiriladi. Alangani tuzulishiga etibor bering. Sham tarkibi paraffin bo`lib u asosan yonganda uglerod va yonuvchi gaz hosil bo`ladi. Uglerod ko`mir holida hosil bo`lib cho`g`langan zarrachalar alanga yorug`ligini hosil qiladi. Shamni yoqib 15 – 20 sm ingichka cho`pni shm o`rtasidan o`tkazing va cho`pni yongan qismiga qarab alangani kuchli yonuvchi qismini aniqlang. Alangaga sovuq shisha plastinkani tutub turing va qurum xosil bo`lishini kuzating. Xulosani yozing.

Xulosa.

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Ball_____ Imzo_______
Sana ______________20__yil