Tiwari Academy Discussion

Dabeet Singh

Asked: October 22, 2020In: Class 10

Comment upon the following: rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density.

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-6 Questions No- 2 Part- B

Dabeet Singh

Asked: October 22, 2020In: Class 10

Liquids generally have lower density as compared to solids. But you must have observed that ice floats on water. Find out why.

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-6 Questions No-4

Dabeet Singh

Asked: October 22, 2020In: Class 10

Convert the following temperature.

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-1 1. 300 K 2. 573 K.

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

Comment upon the following: rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density.

Liquids generally have lower density as compared to solids. But you must have observed that ice floats on water. Find out why.

Convert the following temperature.

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

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

Suggest a method to liquefy atmospheric gases.

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

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

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

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

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