how can i make a model of human respiratory system
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WHAT YOU NEED
Scissors3 Large balloons2 Rubber bandsElectrical tapePlastic 2-liter bottleFlexible plastic tubing - 8 inchesY-shaped hose connector
HERE'S HOW
Gather together materials listed under the What You Need section above.Fit the plastic tubing into one of the openings of the hose connector. Use the tape to make an airtight seal around the area where the tubing and the hose connector meet.Place a balloon around each of the remaining 2 openings of the hose connector. Tightly wrap the rubber bands around the balloons where the balloons and hose connector meet. The seal should be air tight.Measure two inches from the bottom of the 2-liter bottle and cut the bottom off.Place the balloons and hose connector structure inside the bottle, threading the plastic tubing through the neck of the bottle.Use the tape to seal the opening where the plastic tubing goes through the narrow opening of the bottle at the neck. The seal should be air tight.Tie a knot at the end of the remaining balloon and cut the large part of the balloon in half horizontally.Using the balloon half with the knot, stretch the open end over the bottom of the bottle.Gently pull down on the balloon from the knot. This should cause air to flow into the balloons within your lung model.
Release the balloon with the knot and watch as the air is expelled from your lung model.
Scissors3 Large balloons2 Rubber bandsElectrical tapePlastic 2-liter bottleFlexible plastic tubing - 8 inchesY-shaped hose connector
HERE'S HOW
Gather together materials listed under the What You Need section above.Fit the plastic tubing into one of the openings of the hose connector. Use the tape to make an airtight seal around the area where the tubing and the hose connector meet.Place a balloon around each of the remaining 2 openings of the hose connector. Tightly wrap the rubber bands around the balloons where the balloons and hose connector meet. The seal should be air tight.Measure two inches from the bottom of the 2-liter bottle and cut the bottom off.Place the balloons and hose connector structure inside the bottle, threading the plastic tubing through the neck of the bottle.Use the tape to seal the opening where the plastic tubing goes through the narrow opening of the bottle at the neck. The seal should be air tight.Tie a knot at the end of the remaining balloon and cut the large part of the balloon in half horizontally.Using the balloon half with the knot, stretch the open end over the bottom of the bottle.Gently pull down on the balloon from the knot. This should cause air to flow into the balloons within your lung model.
Release the balloon with the knot and watch as the air is expelled from your lung model.
jahidsonu:
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Answered by
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hi
●u can use bottles for making lungs and then colour them and inside the bottle display some pipes as veins
●coloured pipes for making wind pipe or some other vein
●to make it more beguiling u can use small paper slips and write the name of organs
on the top on the thermocol sheet write HUMAN RESPIRATORY SYSTEM
●u can use bottles for making lungs and then colour them and inside the bottle display some pipes as veins
●coloured pipes for making wind pipe or some other vein
●to make it more beguiling u can use small paper slips and write the name of organs
on the top on the thermocol sheet write HUMAN RESPIRATORY SYSTEM
plz mark as brainlist
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