EASY
9th CBSE
IMPORTANT
Earn 100

Differentiate between gas and vapour?

Important Questions on Matter in Our Surroundings

MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 1 - Matter in Our Surroundings>CHAPTER TEST>Q 14
What are the characteristics of particles of matter?
MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 1 - Matter in Our Surroundings>CHAPTER TEST>Q 15

Give reasons only:

Why water at room temperature is a liquid?

MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 1 - Matter in Our Surroundings>CHAPTER TEST>Q 15
Give a reason why Naphthalene balls disappear with time without leaving any solid?
MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 1 - Matter in Our Surroundings>CHAPTER TEST>Q 15
Give a reason why we can get smell of perfume sitting several meters away?
MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 1 - Matter in Our Surroundings>CHAPTER TEST>Q 16
What are the factors which affects the rate of evaporation? Explain?
MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 1 - Matter in Our Surroundings>CHAPTER TEST>Q 17
What produces more severe burns, boiling water or steam?
MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 1 - Matter in Our Surroundings>CHAPTER TEST>Q 17
For any substance, why does the temperature remain constant during the change of state?
EASY
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 1 - Matter in Our Surroundings>CHAPTER TEST>Q 18
Give two characteristic properties of a liquid?