MEDIUM
9th CBSE
IMPORTANT
Earn 100

Equal amounts of water and alcohol are separately placed in two identical Petri dishes. Which will evaporate faster - water or alcohol?

Important Questions on Matter in Our Surroundings

EASY
9th CBSE
IMPORTANT
What is matter? Give three examples of matter.
EASY
9th CBSE
IMPORTANT
A substance has a definite volume but no definite shape. Identify the substance as solid, liquid or gas.
EASY
9th CBSE
IMPORTANT
What are the different states of matter?
EASY
9th CBSE
IMPORTANT
Arrange the following substances in increasing order of forces of attraction between the particles - water, sugar, oxygen.
EASY
9th CBSE
IMPORTANT
Which of the following are matter? Chair, air, love, smell, hate, almonds, thought, cold, cold-drink, smell of perfume. 
MEDIUM
9th CBSE
IMPORTANT

What is the physical state of water at:

A. 25°C

B. 100°C

C. 0°C

MEDIUM
9th CBSE
IMPORTANT
What produces more severe burns, boiling water or steam? 
 
EASY
9th CBSE
IMPORTANT
One gas mixes very easily with another gas. What is this property called?