Question

St. Francis' Convent School
Holiday Homework - Class IX

What kind of a working model can I make for my Holiday Science Project? It's supposed have some kind of utility too.

Answer 1

You can make a LDR project. In which you have to use sensor. We see in many place that no one is their but the street Lights are glowing. In this case we can fit sensor in road so that the light gets switched on only when a car or vehical passes over it.