Question

can yoy tell me the best working model and I will take new Ideas ​

Answer 1

Answer:

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Explanation:

MARK ME AS BRAINLIEST

Answer 2

Answer:

Making of biogas plant.

Working Model of Heart. ...

Working Model of science project “wind turbine” ...

Working Model science project “water rocket” ...

Working model of science project “cotton candy machine” ...

Make a solar cell. ...