Roopa Gangly

Asked: October 22, 2020In: Class 9

What is the physical state of water at: a) 250ºC b)100ºC ?

NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-9 Questions No-2

Roopa Gangly

Asked: October 22, 2020In: Class 9

For any substance, why does the temperature remain constant during the change of state?

NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-9 Questions No-3

Roopa Gangly

Asked: October 22, 2020In: Class 9

Suggest a method to liquefy atmospheric gases.

NCERT Solutions for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-9 Questions No-4

Roopa Gangly

Asked: October 22, 2020In: Class 10

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

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-10 Questions No-1

Roopa Gangly

Asked: October 22, 2020In: Class 9

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

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-10 Questions No-2

Roopa Gangly

Asked: October 22, 2020In: Class 9

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

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-10 Questions No-3

Roopa Gangly

Asked: October 22, 2020In: Class 9

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

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-10 Questions No-4

Roopa Gangly

Asked: October 22, 2020In: Class 9

What type of clothes should we wear in summer?

NCERT Solution for Class 9 Science Chapter 1 Matter in Our Surroundings NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-10 Questions No-5

Roopa Gangly

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