2A+Chemistry+Justin+Le

=WHICH IS BETTER FOR = = PACKAGING and PRESERVING? = **A type of metal, usually the colours of silver. It has the symbol Al, and its atomic number is 13 ** - Advantages 1.Pr ovide excellent barrier properties (gases, water vapour, light, odours) 2.Can be used in on-line filing pro 3.Strength 4.Can be heat treated, suitable for sterile products, can be hermetically sealed -Disadvantages:
 * 1) ALUMINIUM
 * 1) ALUMINIUM
 * Once in storage cans must be protected from moisture and/or humidity
 * <span style="color: #ff474c; font-family: Arial,Helvetica,sans-serif; font-size: 14px;">Health risk to the public
 * <span style="color: #ff474c; font-family: Arial,Helvetica,sans-serif; font-size: 14px;">Environmental disadvantages

=<span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;">**<span style="font-family: Georgia,serif; font-size: 110%;">If you would like more information, please Copy and Paste Links into url... ** = **[]** [|http://www.azom.com/article.aspx?ArticleID=1396#_Advantages_of_Aluminium] [] = =

<span style="font-family: 'Times New Roman',Times,serif; font-size: 200%;">2. PLASTIC
 * <span style="color: #220202; font-family: 'Comic Sans MS',cursive;"> A plastic material is any of a wide range of synthetic or semi-synthetic organic solids that are moldable. Plastics are typically organic **
 * <span style="color: #220202; font-family: 'Comic Sans MS',cursive;"> polymers of high molecular mass, but they often contain other substances. Usual colours are clear. Also known as Polyethylene Terephthalate (PET) **

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">- Advantages <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">-Disadvantages
 * <span style="color: #197ff5; font-family: 'Comic Sans MS',cursive;">Clear, flexible and strong
 * <span style="color: #197ff5; font-family: 'Comic Sans MS',cursive;">Can be used for many other purpose other than packaging food, others as window cleaners and hand washes. [[image:http://www.plasticsandstorage.com.au/images/click_clack/clickclack-ice-hot-plastic-container-950ml.jpg height="239" align="right"]]
 * <span style="color: #197ff5; font-family: 'Comic Sans MS',cursive;">Durability to last longer and doesn't have any bacteria growing on it
 * <span style="color: #ff474c; font-family: 'Comic Sans MS',cursive;">Not environmentally friendly
 * <span style="color: #ff474c; font-family: 'Comic Sans MS',cursive;">Not recycled easily due to durability

<span style="font-family: 'Times New Roman',Times,serif; font-size: 180%;">**Want more information, Copy and Pa****ste links below into url...** [] [] []

<span style="font-family: 'Times New Roman',Times,serif; font-size: 200%;">3. GLASS


 * A hard, brittle substance. Usually clear and is seen for everyday objects such as windows.**

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">-Advantages <span style="font-family: Arial,Helvetica,sans-serif; font-size: 120%;">-Disadvantages
 * No liquids or air can get in once sealed
 * Recyclable
 * Durability to last long
 * Breaks easily when dropped or when other objects come in contact with enough force
 * Expensive to produce
 * Hazards come when packaging

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 * <span style="color: #000000; font-family: 'Times New Roman',Times,serif; font-size: 200%;">Need more information? just copy these links into url... **