Slides 2-5 LETS RECAP : Copy down memory note and table on the left . - PowerPoint PPT Presentation

Week 8 : 8-12 June Slides 2-5

LET’S RECAP : Copy down memory note and table on the left . Raw materials have not gone through a process . They are made into other things and may look, smell, feel or taste different and be used for a totally different purpose than before. Processed materials have been refined or built by humans from raw materials. e.g. paper, steel and glass. MATERIAL RAW MATERIAL OR PROCESSED MATERIAL vegetable C bread O P sausage Y metal furniture wheat animal skin toothpaste metal from a mine leather shoes wood

Will be needed in week 9 for revision work Processed material New properties Uses Plaster of Paris water and fire resistant Dentist makes casts, bandage for arm/leg, works of art, filler for cracks in walls concrete hard, durable, fire-resistant buildings, roads, bridges, thick underground pipes fabrics Cotton keeps people cool in warm clothing, stockings, shoes, umbrella, tents, weather, fabrics can be waterproof e.g. cloths, curtains You may copy this raincoat, heat-resistant for firefighters, table out, print it out strong for curtains and tablecloths, warm or just use it as a like wool to trap heat in winter, reference to help you. absorbent to soak up water ceramics Hard, durable, waterproof, fire-resistant pottery, plates, bowls, vases, basins, tiles plastics Light, strong, durable, waterproof pipes, dishes, containers, furniture paint Hardens when dry to protect or colour an walls, floors, surfaces, objects area

Watch the You tube link. Write down only the no. and letter from the table. youtube.com/watch?v=0oBwpFS4Euk&feature=youtu.be Process of brick making Answers 4 a) leveling the mixture into a mould 1. 1 b) wet mixture of bricks is 2. compressed dried and fired in a 2 kiln between 600-900 ˚ C c) wet bricks are left to dry 3. d) wet brick removed from mould 4. 5 e) packing the mud mixture into 5. 3 mould f) pouring water to mix with straw 6. and mud 6

Copy down the Watch the You tube links. note below. WEAVING Traditional basket weaving ❑ Weaving is a process of using strips of https://www.youtube.com/watch?v=eFayNRoFb9E grass or plant fibre crossed over and How to weave a basket with palm leaves under each other. https://www.youtube.com/watch?v=SN0A3Beo7z0 ❑ Traditional hats, baskets, mats and roofs of rondavels can be woven. PLAITING ❑ Weaving helps to strengthen materials MAT and make them durable. ❑ Stitching uses thread to sew materials together. HAT ❑ Plaiting is another form of strengthening fibres where 3 strands are twisted over ROOF COILING and under each other to form one thicker strand. ❑ Coiling is when material is rolled into a BASKETS spiral shape.