MEDIUM
7th Maharashtra Board
IMPORTANT
Earn 100

What are the ingredients of cement?

Important Questions on Materials we Use

MEDIUM
7th Maharashtra Board
IMPORTANT
General Science Standard Seven>Chapter 15 - Materials we Use>Exercise>Q 2

What will happen if cement is not used in making concrete?

MEDIUM
7th Maharashtra Board
IMPORTANT
General Science Standard Seven>Chapter 15 - Materials we Use>Exercise>Q 2

Make a list of detergents that you use.

MEDIUM
7th Maharashtra Board
IMPORTANT
General Science Standard Seven>Chapter 15 - Materials we Use>Exercise>Q 2

What should be expected from a detergent for delicate garments?

EASY
7th Maharashtra Board
IMPORTANT
General Science Standard Seven>Chapter 15 - Materials we Use>Exercise>Q 2
What is meant by ‘surface activity’? Name three chemicals responsible for the surface activity of various detergents.
EASY
7th Maharashtra Board
IMPORTANT
General Science Standard Seven>Chapter 15 - Materials we Use>Exercise>Q 3

What are the similarities and differences between –

Natural detergents and non-made detergents.

EASY
7th Maharashtra Board
IMPORTANT
General Science Standard Seven>Chapter 15 - Materials we Use>Exercise>Q 3

What are the similarities and differences between –

Soap and synthetic detergent.

EASY
7th Maharashtra Board
IMPORTANT
General Science Standard Seven>Chapter 15 - Materials we Use>Exercise>Q 3

What are the similarities and differences between –

Bath soap and soap for washing clothes.

EASY
7th Maharashtra Board
IMPORTANT
General Science Standard Seven>Chapter 15 - Materials we Use>Exercise>Q 3

What are the similarities and differences between –

Modern cement and ancient cement.