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Primary Science and Technology Teachers' Guide - OECS

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<strong>Primary</strong> <strong>Science</strong> & <strong>Technology</strong> Teacher Manual – Resources – K – 4<br />

CONTENT SUMMARY<br />

‣ Litter is unhealthy. It is degrading to the environment.<br />

‣ Litter can cause diseases, flooding, injury, an increase of pests (rats,<br />

flies, cockroaches, etc.).<br />

‣ There are many ways by which we can solve the litter problem in our<br />

school.<br />

‣ We can embark on:<br />

a) clean-up projects<br />

b) recycling projects<br />

c) litter awareness campaigns, etc.<br />

‣ Air will have pollutants according to the environment in any particular<br />

area.<br />

o Exhaust from vehicles will most likely pollute a busy city.<br />

o Smoke from burning l<strong>and</strong> or smoke from making charcoal is<br />

most likely to pollute a rural area or a farming community.<br />

o Dust will pollute the air during construction, demolition, etc.<br />

‣ Most pollutants can cause health problems, especially to babies, older<br />

people <strong>and</strong> those with breathing problems such as asthma.<br />

There are also some airborne diseases which can affect us. One of the<br />

most common is influenza.<br />

‣ We can investigate the air around us by constructing devices for<br />

collecting dust particles in the air.<br />

‣ Water is a liquid<br />

‣ The state of water can change when exposed to heat or cold.<br />

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