porous and non porous objects

What material absorbs water the quickest?

• sponge
• stone
• plastic bottle
• chair

Which of the following does not belong to the group?

• towel
• cotton
• rock
• tissue

Why is cotton considered a natural absorber of water

• It is very light.
• It is very porous.
• It is very white.
• It is very smooth.

What happens if you place the sponge in a basin with a little amount of water?

• The water absorbs the sponge.
• The amount of water remains the same.
• The amount of water increases.
• The water disappeared and the sponge gets wet

Which set of materials absorbs water?

• sponge, rock, bottle
• candy, paper, raincoat
• tissue, cotton, towel
• table, chair, comb