500g glace cherries cut in half.
1 litre bottle of water
uncooked rice grains
4 or 5 flat oval yellow and white lollies or similar.
Teacher concocts the model while giving a lesson on the components of blood.
Cherries are red blood cells.
Water: plasma (asks How many 1 litre bottles of blood do we have in our bodies? We actually have an average of 5 litres of blood, or about 8 percent of our body weight).
Rice grains are platelets.
Lollies represent white blood cells.