Grade 6
Science
Unit 1
Prepared by Anjalee
Balasuriya
B.Sc.Biological Science (Kelaniya),P.G.D.E(Colombo)
Unit 1.1- Body Organs
 Our body is made of many different parts.
 External body parts- what we can see outside of the body.
 Internal body parts- parts inside the body.
Body Organs
 The parts inside of our body are called organs.
 Each body organ has a special function (job) in the body. But Different body
organs work together. If one organ of the body get damaged or not working
properly, it affect the functioning of the whole body.
Body organ
Location of the body
Inside the skull
function
It controls the body
Brain
In the chest
Helps to breath.(take in
oxygen and send out
carbon dioxide)
lungs
Back of the body just
below the rib cage
Kidneys
Filter blood and
produce urine
In the chest, slightly to the Pump blood around the
left
body
Heart
right side of the belly
(upper abdomen)
Store energy and break
down harmful substances
in the body
On the left side of the
upper abdomen.
-Store food for some time
-Digest food
In the abdominal body
cavity, extend from the
stomach to the large
intestine
-Digest food
-Absorb nutrients
Liver
Stomach
Small intestine
Wraps around the border of
the abdominal body cavity
from the right side of the
body, across the top of the
abdomen, and finally down
the left side.
Large intestine
-Absorb water
-pass undigested flood
towards the rectum
Organ System
 A group of organs which work together is called an organ system.
Breathing/respiratory
system
Blood circulatory
system
Excretory system
Nervous system