Evaporation

Author:Jharkhand Board
9th Jharkhand Board
IMPORTANT

Important Questions on Evaporation

MEDIUM
IMPORTANT
Science: Class IX>Matter in Our Surroundings>Evaporation> Q 1

Give reason for the following observation.

Naphthalene balls disappear with time without leaving any solid.
 

MEDIUM
IMPORTANT
Science: Class IX>Matter in Our Surroundings>Evaporation> Q 2

What type of clothes should we wear in summer?

MEDIUM
IMPORTANT
Science: Class IX>Matter in Our Surroundings>Evaporation> Q 3

Why are we able to sip hot tea or milk faster from a saucer rather than a cup?

MEDIUM
IMPORTANT
Science: Class IX>Matter in Our Surroundings>Evaporation> Q 4

Why does our palm feel cold when we put some acetone or petrol or perfume on it?

HARD
IMPORTANT
Science: Class IX>Matter in Our Surroundings>Evaporation> Q 5

How does the water kept in an earthen pot (matka) become cool during summers?

HARD
IMPORTANT
Science: Class IX>Matter in Our Surroundings>Evaporation> Q 6

Why does a desert cooler cool better on a hot dry day?