Waste Materials Yr6 pdpr

Waste
Materials

(bahan buangan)

Science Year 6
PDPR 6/7/2021
Prepared by
Madam Sharmawati Bt Omar
SK (A) DATUK HAJI ABDUL KADIR HASSAN

Waste materials are Types of waste materials
materials that we no longer
need and do not want to Plastic
keep.

Food Toxic
waste waste

Waste
Materials

Paper Metal

Glass Excretory
products &

feaces

Examples of waste materials

Plastic Metal Glass Paper Toxic Food Excretory
waste waste products and

Palstic Aluminium Mirror Newspaper Used Skin of feaces
ruler batteries fruit
Urine
Plastic Toy car Jar Magazines Chemical Remains
bag industrial of born Feaces
Rotten
Plastic Milk can Glass Boxes Pesticides vegetable
bottle window s

Highly flammable Contain materials Contain toxic materials
with harmful
Contain concentrated microorganisms
solutions of strong acid or
alkaline that can corrode
skin and metals

Biodegradable Waste Non-biodegradable waste

❑ Wastes that CAN DECAYED by ❖ Wastes that CANNOT BE DECAYED by
microorganisms microorganisms.

❑ The wastes will returned as nutrient to the soil. ❖ Can pollute the environment.
✓ flash flood
✓ clogged drains
✓ water pollution ( toxic waste )
✓ health problem ( dengue fever, food

poisoning )

Waste
Management

1) put waste materials in garbage bag and tied
neatly.

2) waste materials should be separated
according to their types of materials.

3) use special containers to disposed chemical
waste and waste oil.

4) produce composts using food wastes.
5) 3R practice – REDUCE, REUSE, RECYCLE

Planned management of waste materials

By Local Municipal Authorities

Waste materials are collected
and send to a waste treatment

centre.

Waste materials are separated by
types of recyclable and non-
recyclable wastes

1) Burned in an • 2)
incinerator and Recycle

disposed

Thank you