useful and Harmful materials

Materials that are considered useful after it serve it's purpose is

• Harmful materials

• Useful materials

• matter

• Mass

• useful materials

Materials that are considered harmful after it serve it's purpose such as broken glass and toxic substances.

• Harmful materials

• Useful materials

• waste material

• Mass

Example of useful material.

• used paintbrush

• used tire

• broken glass

• empty cartoons

Example of useful material.

• used paintbrush

• used tire

• broken glass

• empty cartoons

Example of harmful material.

• plastic straw

• used paint brush

• plastic bottle

• empty cartoons

Used newspaper is an example of....

• harmful material

• waste

• useful material

• none of the above

What is the physical property of mirror...

• durability

• hardness

• brittleness

• porosity

The following materials belongs to Porosity except

• sponge

• wood

• paper

• cloth

Which of the following materials belongs to Elasticity

• sponge

• wood

• paper

• rubberband

Anything that occupies a space and has mass is..

• matter

• ceramics

• paper

• rubberband