SCIENCE - MATTER

SCIENCE - MATTER

by BELINDA R. BALASTIGUE

PROPERTIES OF MATTER CAN BE CLASSIFIED AS

​PHYSICAL PROPERTIES - Can be observed without any changes in its composition such as hardness, brittleness, flexibility,elasticity,conductivity,malleabilty and ductility.

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​CHEMICAL PROPETIES- are characteristics that can only be observed when the composition of the material has changed like COMBUSTIOBILITY,FLAMMABILITY, BIODEGRADABILITY are some of the examples.

PHYSICAL CHANGE - happen s when there's change in size,shape or form.

CHEMICAL CHANGE - when the composition of the material is altered, with formation of new product , formation of gas, release or absorption of heat and formation of precipitate are some evidences of chemical change.

MINIMIZING WASTE PRODUCTIONS

​PRACTICING 5 R'S - REDUCE, REUSE, RECYCLE, RECOVER, AND REPAIR - TECHNIQUES IN WASTES MANAGEMENT

REDUCING-REDUCE -

​Lessening the amount of wastes in the environment, avoiding the usage of disposable materials

REUSING- RE-USE

​IT MEANS USING THE SAME MATERIALS AGAIN FOR THE SAME PURPOSE

RECYCLING-RECYCLE

​THIS INVOLVES THE CREATION OF A NEW PRODUCT FROM A MATERIAL THAT HAS ALREADY SERVED ITS PURPOSE.

RECOVERING/RECOVER

HARNESSING ENERGY FROM WASTES THROUGH CERTAIN PROCESSES LIKE PYROLYSIS, ALSO OTHER PARTS CAN BE RE USED​

REPAIRING/REPAIR

FIXING SLIGHTLY BROKEN THINGS TO MAKE THEM USEFUL AGAIN, REDUCE WASTES AND SAVES MONEY.