Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be moulded, extruded or pressed into solid objects of various shapes. The harmful chemicals released from plastic products throughout their entire life cycle can pose a serious risk to humans and the environment, including when waste is not properly managed, finding its way to air, water and soils. In this case, the teachers at school must always teach to students the correct way to reduce, reuse or recycle the plastic. This can help to keep the school environment clean and let students have a greener environment to study everyday.

Glass is a object that can cause injuries once the it is broken, it can be dangerous because it can cause a lot of injuries to an individual. The glass can be disposed in a lot of ways. For examples, wrap or grab the glass with newspaper when the glass is broken to prevent hand get cut by the glass and put it inside the box to prevent people on stepping to the fragments of the glass. We must always dispose the glass the correct ways to make sure no one is injured.

Paper is a thin sheet material the we uses everyday in schools. We normally uses the paper to do our schools project and also the homework. Paper waste has become a pressing concern since educational institutes use paper the most. From homework assignments to examinations and projects, everything requires paper which is wasted without being recycled. As we all know that a piece of A4 paper is a double- sided paper but some students only uses one side to do their homework or the schools assignment, which can cause paper wastage in school. Student must always reuse the paper to prevent any paper wastage in school.