Class 5

Experiments with Water question bank (EVS)

Practice 43 free Class 5 EVS - Experiments with Water questions with answers and step-by-step solutions.

Q1.

Why does a person easily float on the water surface of the Dead Sea without swimming?


(A)
The water temperature is boiling hot
(B)
The water is extremely salty ($300\text{ g}$ salt per liter), making it much denser than human body
(C)
There are strong upward winds
(D)
The water is shallow everywhere
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Q2.

What hypothesis would an investigator test when analyzing anomalies in 'Floating and Sinking Density'?


(A)
A falsifiable, testable proposition based on scientific principles of Floating and Sinking Density
(B)
An untestable guess
(C)
A popular opinion
(D)
A mythological story
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