Organisation of class: Class
group as unit except for experts (group Work) + Laptop (4 groups)
to 'Heart' chart:
Description of heart - a pump, made of muscle, the size of a fist,
situated between the lungs;
Made of muscular walls;
chambers: Right + Left Atrium (blood from body pumped to lungs to
Right + Left Ventricle blood pumped from lungs to other parts of
the word Circulation:
What is a Vein / Artery / Capillary Valve / Aorta / Venae Cavae?
96,000 kms. of vessels, enough to circle the Earth almost 21/2 times.
Composition of Blood
a) Plasma - yellowish, clear liquid b) Blood cells
(I) Red blood cells carry O2 through the body and helps get rid
(II) White blood cells help protect the body against infections
(III) Platelets help your cuts etc. to heal.
Types A / B / AB / O
Donations and blood transfusions.
Haemophiliacs and clotting.
of exercise on pulse:
describe experiment to speed up your pulse and measurement in 15
No. X 4 = 1 minute Human pulse = 70 beats per minute Mouse = 500
and Elephant = 25
- Science Explorer II:
Map - Human Beings - Heart maker Investigation and also go to Test
Yourself (easy and hard)
Ultimate Human Body 2.0 :
Click on Systems Scanner in 3D Lab. - Body Machine - Click on How
often does your heart beat? Also in Systems Scanner, click on Circulatory
System and see all blood vessels throughout the body. May click
and zoom into any area. Click on Body Organs in Systems Scanner,
click on heart.
fast does your heart beat (home-made stethoscope)
of exercise on pulse - draw graph.