Monday, 10 December 2012

Hari Ucapan Dan Penyampaian Hadiah SJKC Kampung Raja

Ucapan Pengerusi PIBG

Ucapan Guru Besar

Ucapan Wakil Murid Tahun 6

Persembahan Tarian Tradisional 

Vocab Link

vacuum – packing
pembungkusan vakum
harmful effects
kesan buruk
waste disposal
pembuangan bahan buangan

Harmful Effects of Improper Disposal Of Waste

1.     Improper ways of disposing of waste can be harmful to the environment.
2.     It can cause pollution to the environment.
3.     Open burning of rubbish and agricultural waste can cause haze.
4.     Smoke released from factories and motor vehicles can pollute the air.
5.     Chemical substances and other toxic materials released from factories and agricultural activities can pollute the rivers.
6.     Improper disposal of waste will make the environment dirty and untidy.
7.     A dirty environment is unhealthy to live in.
8.   Improper disposal of waste can cause:
²  air pollution  
² water pollution
²sickness and diseases
²acid rain
²flash floods

Improper ways of Disposing of Waste

1.    Some waste materials such as foodstuff can decay.
2.    They are biodegradable.
3.    However, some waste materials such as plastic and glass are non-biodegradable.
4.   They cannot decay.
5.    Improper disposal of these wastes is harmful to the environment.
6.   Some of the improper ways of waste disposal are:
   Littering ( throwing rubbish every- where)

  Open burning of rubbish and agricultural waste

   Release of waste from the factories directly into rivers.

   Release of smoke from factories and motor vehicles into the air.

Waste Management

Effect of Improper Disposal Of Waste On The environment
Types and sources of waste
1.    Waste is any material that is no longer needed.
2.    Waste can be solid, liquid or gas.
3.    Waste is disposed of in the environment.
4.   Every day millions of tons of waste are disposed of.
5.    The types of waste and their sources are as follows.
³  Rubbish such as plastic, left-over food, paper and other solid wastes from the home.
³ Sewage from the home and factories.
³ Toxic materials such as smoke, dust, radioactive materials from factories.
³ Pesticides and organic fertilizers from agriculture.
³ Smoke from factories, motor vehicles and open burning.

Thursday, 6 December 2012

Test yourself

      1.    State two conditions that are needed for the growth of fungi  and   bacteria.
     2.   State three characteristics of spoilt food.
     3.   What process is used for preserving fresh milk in a can?
     4.   Give a reason why bacteria cannot live in food preserved by vacuum- packing.
     5.   Give two examples of food that can be preserved by waxing.

The Importance Of Preserving Food

1. Food preservation gives many benefits to us.
a) The food will last longer
ù   With preservation processes, perishable products such as fruit and vegetables,     meat and fish can be kept for a long time.
    ù    Food can be marketed to far places overseas. This can increase income in the agricultural sector.

b) The food is easy to store and distribute
ù  Canned foods are much easier to store and distribute from one place to another compared to raw foods.    

c) Food wastage is reduced
ù   Excess food can be kept in a refrigerator for the next meal.
ù   Without preservation, perishable foods like vegetables and fruits cannot be eaten a few days after harvesting.

2. Food preservation is very important to fulfill the food supply needs in a country.
3. It ensures that food supply can be distributed to the people at all times.
4. Furthermore, problems like food shortage or famine can be avoided.
5.  Food preservation can help our nation’s economy by adding value to our export  products.



Dried foods can be stored in small container

Flashy Christmas Tree