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tanmay chaudhry from BAL BHAVAN PUBLIC SCHOOL, New Delhi
Subject :NSO    Class : Class 5

A student dipped a strip of aluminium and a strip of iron in water. The student then exposed the strips to air for one week. What would the student most likely observe after one week?

AThe iron strip formed rust.
BThe aluminium strip formed rust.
CBoth the metal strips formed rust.
DNeither of the metal strips formed rust.


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Ans 1:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is A because iron rusts but aluminium doesn't rust. Rusting needs air and water.

Ans 2:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9

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