Bubble wrap is a pliable, transparent material which is commonly used for packing fragile items. It is made up of lots of plastic bubbles filled with air

Download Bubble wrap is a pliable, transparent material which is commonly used for packing fragile items. It is made up of lots of plastic bubbles filled with air

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<ul><li> Slide 1 </li> <li> Bubble wrap is a pliable, transparent material which is commonly used for packing fragile items. It is made up of lots of plastic bubbles filled with air which act as a shock absorber. It is also known as a stress reliever as popping the bubbles can have a relaxing effect. Lets find out about </li> <li> Slide 2 </li> <li> Cotton wool is made of silky fibres taken from a cotton plant. The seeds are removed and the cotton is then bleached and sterilised. It has medical uses as well as cosmetic uses, as it a good at absorbing liquid. Lets find out about </li> <li> Slide 3 </li> <li> Clingfilm is a very thin piece of plastic, most commonly used for wrapping food to keep it fresh. As it made out of plastic it is waterproof and it does not conduct heat or electricity. Lets find out about </li> <li> Slide 4 </li> <li> Tin foil is made of the metal aluminium, which makes it a good conductor of heat and electricity. The metal is made into very thin sheets which are pliable, yet easily damaged. Tin foil is often used for packaging food. Lets find out about </li> <li> Slide 5 </li> <li> Natural rubber was made from a milky liquid found in the sap of some plants. Nowadays, rubber can be made synthetically (not naturally). Rubber is a flexible, waterproof material that is a good insulator. Lets find out about </li> <li> Slide 6 </li> <li> The most common use for paper is writing, printing or packaging. It is made by pressing together moist fibres of wood. It is a flexible material which does not conduct heat or elecricity, nor is it waterproof. Lets find out about </li> <li> Slide 7 </li> <li> Materials Branching Database </li> <li> Slide 8 </li> <li> Is your material transparent? </li> <li> Slide 9 </li> <li> Does it have air pockets? </li> <li> Slide 10 </li> <li> Is it made out of metal? </li> <li> Slide 11 </li> <li> Is it easy to write on? </li> <li> Slide 12 </li> <li> Is it soft? </li> </ul>