Useful and Harmful Materials

They are materials that do not pose any threat to living organisms.

They improve people's way of living and comfort.

They can be recycled or reused.​

​

Useful Materials

They are materials that have a negative impact on the environment.

Personal care products may contain harmful chemicals.

Household chemicals must be handled carefully (​pesticides, detergents, bleaches etc.)

​

Harmful Materials

Plastics are cheap to produce and serve manty purposes in your home.

They are not biodegradable and remain in the environment for a long time.​

​

​Plastics

Flammable - kerosene, gasoline, and other flammable materials must be stored properly.

Toxic - paint and other chemicals must be used with care.​

Corrosive - bleach and acids must be stored in sealed containers and properly labeled.​

​

Properties to Consider

​