How to Build a 1 Liter Measurer

How to see a bottle was really a liter?

 

Step1: But the bottle on a scales（for grams)

 

Step2 : We need press a bottom and the scale will turn into the bottle's scales.

 

Step3: Glue a long paper on the bottle

 

Step4: put a thing that a way have a big hole and another ways have small hole.

 

Step5: Put the water in the bottle and when is 200 grams we need to write 200mls on the paper

 

Step6: Put the water in the bottle and when is 400 grams we need to write 400mls om the paper

 

Step7: Put the water in the bottle and when is 600 grams we need to write 600mls om the paper

 

Step8:Put the water in the bottle and when is 800 grams we need to write 800mls om the paper

 

Step9:Put the water in the bottle and when is 1000 grams we need to write 1000mls om the paper.

Done