What do you call the materials that decay and give bad smell?

• porous

• nonbiodegradable

• biodegradable

• nonporous

What do you call the materials that takes a long time to decay?

• biodegradable

• porous

• nonporous

• nonbiodegradable

What will happen to an object if it is less dense than water?

• float

• sink

• nothing will happen

• vanish

This is an upward force that keeps things afloat.

• heat

• buoyant

• magnetic

• friction

What is the place where collected garbage is dumped?

• garden

• sea

• river

• landfill

What property is BEST shown in the picture?

• porosity

• buoyancy

• density

• biodegradability

Which of the following is nonporous?

• 
• 
• 
• 

Which of the following materials can be used to clean spilled water?

• plastic

• glass

• raincoat

• paper towel

What will happen if an object is denser than water?

• vanish

• sink

• float

• nothing will happen

Porous or Nonporous