1. METALS & NON-METALS

2. Today’s Objectives: Describe the appearance of metals and non- metals Test the conductivity of metals and non-metals Understand the properties of metals and non- metals

3. Metals and non-metals Vs. CopperChlorine Spot the difference! Make a list of the differences between these two elements

4. Activity: You will be given 6 different substances You need to determine if they are metals or non-metals and then test their properties. Your results must be presented in a table (which is shown on the next slide). Then with your results make 4 general rules (2 for metals and 2 for non-metals) that can be used to identify objects as metals or non-metals. For example: All metals (are/are not) malleable … Non metals (do/do not conduct electricity) …

5. Substance Metal or non- metal? Appearance Is it flexible or brittle? Is it hard or soft? Does it conduct electricity? Metals and Non-Metals

6. Properties Summary Metals High melting point Shiny Malleable Hard (high density) Conduct electricity Conduct heat Non-metals Low melting point Dull Brittle Soft (low density) Do not conduct electricity Do not conduct heat

7. Why is it made of metal? Water pipes are made of copper because … Alloy wheels are made from aluminium because… Jewellery is made out of gold because …

8. Review Properties of metals? Ductile Strong Brittle MalleableInsulator Conductor Sonorous Low melting point High boiling point