MEDIUM
Earn 100

Write the differences between the properties of solids, liquids and gases.

Important Questions on Materials Around Us

HARD
Why is it important to study the properties of a material before using it to make a particular object? Give example.
MEDIUM
What happens to a substance when it dissolves in a liquid? In your own words, try to explain what the word 'dissolve' means.
HARD
List the properties of matter which help in sorting of materials.
MEDIUM
State two properties (other than those mentioned in the chapter) based on which you can group different substances.
EASY

Write the properties of the following substances.

1. Salt

2. Flour

3. A chapati

MEDIUM
How is capacity measured?
HARD
Can you name some human-made appliances that produce harmful gases? How can you reduce poisoning due to harmful gases?
MEDIUM
Which of the following is a bad conductor of heat?
HARD
What are conductors and insulators? Explain with examples.
EASY
Name the components of the following mixture: fruit cream.
MEDIUM
Is an object always made of only one type of material? What materials can be used to make a table?
 
MEDIUM
How can you distinguish materials on the basis of their hardness, conductivity, and solubility? Explain with examples.
MEDIUM
Name the components of the following mixture: coca-cola.
EASY

Pick the odd one out and tell the property considered for grouping: Pencil, rubber, sharpener, compass, handkerchief.

EASY
What do we study in chemistry?
MEDIUM
Which property of materials should not be considered while purchasing a cooking utensil?
EASY

Pick the odd one out and tell the property considered for grouping: Mango, brinjal, banana, grapes, apple.

EASY

Pick the odd one out and tell the property considered for grouping: Parrot, snake, lion, table, cow.

MEDIUM
How does a blanket help us keep warm on a cold winter night?