how to make a working model of heart?

Question

it is of biology.

Answer 1

Cut a beer bottles into half,

Put a cork at mouth with a hole through which u can pass some small tube/ straw

tie a very small baloon(uninflated) to its inside end

then take a large baloon (uninflated) cut it from one side to lay it open,

Tie the baloon to the base from the whole circumference of beer bottle so that its airtight

you can push the Rubber baloon (large cut open one) towards the mouth of the bottle and lo it works

Answer 2

This is the simplest way to have a model of the heart. Just go to a website (ex. Google) and find an image of the heart that indicates the parts of the heart (ventricles and atriums) and simply explain their functions to the class or turn it in like that. Also, if your turning it in w/o explaining it to the class, I suggest you write down the functions of the parts of the heart on a loose-leaf sheet of paper.(Or you could just do that complicating bottle model experiment. It's really your choice).

Answer 3

study that of a rabit

Answer 4

what???