Question

working models on the subject science
plz share if u know​

Answer 1

Explanation:

●making a vacuum cleaner

●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. ...

Answer 2

Answer is :

1. Electrical circuit
2. coke+mentos fountain
3. Carbon Volcano