මොළය, සුෂුම්නාව සහ ස්නායු හරහා පණිවිඩ හුවමාරු කරයි.
The nervous system controls and coordinates all body activities by transmitting electrical signals between the brain and the rest of the body.
(Excretory System)
: Translating complex biological phenomena into familiar Sinhala terms helps clear up immediate confusion.
විභාග වලට අදාළව සකස් කළ විශේෂිත සටහන්.
2. ශ්වසන පද්ධතිය (Respiratory System)
Nose (නාසය), Trachea (ශ්වාසනාලය), Lungs (පෙනහළු), Diaphragm (ප්රාචීරය).
The kidneys filter blood to produce urine, eliminating urea, excess salts, and water.
e-thaksalawa.moe.gov.lk This is the official e-learning portal of the Ministry of Education in Sri Lanka. It is the most reliable source for free, curriculum-aligned textbooks and teacher's guides in Sinhala medium. Look for the "Science" section for your grade (e.g., Grade 11, "Let us understand the musculoskeletal system"). To find PDFs here, navigate to the "Textbooks" section, select your grade and subject (Science), and you will find downloadable PDF files covering body systems in Sinhala.
You can access detailed Sinhala medium study materials from the following official and educational sources: Grade 10 Science (Unit 4):