2. DISCOVERY OF METALS The period when metal was discovered was known as the Copper Age, Bronze Age or Iron Age, depending on geographical region. The age of metals began with copper. The discovery of metals meant that man could replace his stone tools with metal ones. That’s made of copper!!!

3. WHAT ARE THE COMMON PROPERTIES OF METAL Their most common properties are…... they are malleable(can be bent)... they are hard/strong/stiff … they are usually heavy... they can be reused... they are good conductors of heat and electricity... they are usually shiny when hardened (except mercury) … they are usually brittle

4. USES OF METALS IN THE PAST they were used for…. … Religious purposes … weapons and tools … furniture and sometimes, keep-sake items

5. USES OF METALS IN THE PRESENT They are used for… … making buildings … making transportations … wearing as jewellery … made into tools and weapons … art and religious purposes

6. DISCOVERY OF WOOD Wood was used as early as when man first picked it up. The usefulness of wood is as old as civilisation itself.

7. WHAT ARE THE COMMON PROPERTIES OF WOOD Their most common properties are… … can be both hard and soft … can be both heavy and light … if stiff, breaks easily … can be reused

8. USES OF WOOD IN THE PAST They were used as… … a source of fuel … tools and weapons … religious purposes and art … furniture

9. USES OF WOOD IN THE PRESENT They are used for… … tools and weapons … making buildings … religious purposes and art … furniture … a source of fuel Boy have we worked hard today!

10. CREDITS DONE BY: Nabilah Bahrim Joel Chen Yang Yadanar Special thanks to… neon.mems.cmu.edu en.wikipedia.org web.singnet.com.sg www.4to40.com www.newworldencyclopedia.org ezinearticles.com www.lcc.ukf.net wikianswers.com www.ribatejo.com