REVISION NEW LEARNING

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1 REVISION I have developed my knowledge of the Periodic Table by considering the properties and uses of a variety of elements relative to their positions. SCN 3-15a S2 Chemistry Metals Lesson 1 NEW LEARNING I can participate in practical activities to extract useful substances from natural resources. SCN 3-17b

2 Starter Questions 1. Write down 3 words that describe a metal. Words might include hard, shiny, strong, sharp? 2. Are most metals cheap or expensive? Why do you think this is? Metals tend to be expensive because they are a finite (limited) resource and must be mined from the earth.

3 Chemistry topic Jobs using metals Smith (a.k.a. metalsmith), such as blacksmith or silversmith Jeweler Founder Steel erector Welder Boilermaker Pipefitter Millwright Gunsmith Farrier Furniture maker

15 Lesson 2 Properties of Metals

16 Starter Which metal element is a liquid at room temperature? Where would you find the Metals in the periodic table? What is a melting point?

26 Lesson 3 The Periodic table (revision)

27 Starter Choose a group within the periodic table and write the elements of this group on the white board. Circle one and use your periodic table to find out 2 things about it.

35 REVISION I have developed my knowledge of the Periodic Table by considering the properties and uses of a variety of elements relative to their positions. SCN 3-15a S2 Chemistry Metals Lesson 4 NEW LEARNING I can participate in practical activities to extract useful substances from natural resources. SCN 3-17b

36 Starter Questions 1. Put these metals in order of reactivity, with most reactive first: Ca, Mg, Na, K. K, Na, Mg, Ca 2. When these metals react with water, what is seen which shows a chemical reaction? Bubbles of gas, heat or light given out. 3. Which 2 groups in the periodic table do these metals belong to? Alkali Metals and Alkaline Earths.

37 By the end of this lesson I will be able to.. Find the transition metals in the periodic table Give examples of different transition metals and how they are commonly used

38 Find the fibs! Facts about Transition Metals? Are found in the middle of the periodic table Usually have high melting points Are usually good conductors of heat and electricity Are all magnetic Are all solids at room temperature (apart from mercury) Usually have low melting points Are usually strong Examples are potassium, aluminium and sodium Transition metals Are found in groups 1 and 2 of the periodic table Are usually malleable (can be bent into shapes) Examples are iron, silver and titanium Are usually dense (heavy) Are usually ductile (can be stretched into wires) Have lots of uses (including being used as catalysts to help speed up reactions) Are usually good insulators of heat and electricity

Uses of Transition Metals Transition metals are commonly used in

They are also often used to make and decorative items.

A catalyst speeds up a chemical reaction without being used up.

39 Uses of Transition Metals Transition metals are commonly used in household appliances (e.g. Copper,, aluminium chromium). They are also often used to make and decorative items. One less well known use is as. A catalyst speeds up a chemical reaction without being used up. It can be reclaimed after the reaction and. reused jewellery catalysts catalyts jewellery transition aluminium reused

40 Crosswords

41 Catalysts in Action! You are going to examine 3 different transition metal catalysts. Each time, write down what you see in your jotter: Catalyst Transition Metal Observations Use Manganese Oxide (teacher demo) Cobalt Chloride (you do it!) Catalytic Converter (video)

42 Catalysts in Action! Catalyst Transition Metal Observations Use Manganese Oxide Mn Caused bubbles of oxygen to form quicker in hydrogen peroxide. Makes a reaction go faster at lower temperature. Cobalt Chloride Catalytic Converter

43 Catalysts in Action! Catalyst Transition Metal Observations Use Manganese Oxide Mn Caused bubbles of oxygen to form quicker in hydrogen peroxide. Makes a reaction go faster at lower temperature. Cobalt Chloride Co Lots of bubbles and colour changes pink to green to pink again. Shows that a catalyst is the same after the reaction. Catalytic Converter

44 Catalysts in Action! Catalyst Transition Metal Observations Use Manganese Oxide Mn Caused bubbles of oxygen to form quicker in hydrogen peroxide. Makes a reaction go faster at lower temperature. Cobalt Chloride Co Lots of bubbles and colour changes pink to green to pink again. Shows that a catalyst is the same after the reaction. Catalytic Converter Pt or Pd Allows unusual reactions at a lower temperature eg. CO to CO 2 Converts harmful gases to less harmful ones.

Exit Task How well do you understand what catalysts do? Hold up your fist to five : 1 = Don t know what you re on about! 2= Can tell you a little, but don t understand it.

45 Exit Task How well do you understand what catalysts do? Hold up your fist to five : 1 = Don t know what you re on about! 2= Can tell you a little, but don t understand it. 3 = Can mention some examples, but couldn t explain it to someone else. 4 = I m nearly there, but I still have some questions. 5 = I could explain this lesson to someone else and answer questions on it.

46 Mining metals Lesson 5

47 Starter Which group of metals in the period table are the most reactive? Which group of metals are the least reactive? Look at the periodic table in your planner and list 5 of the least reactive metals

56 Lesson 6 Recycling

57 Starter Think about your kitchen a) how many bins do you have in it? b) How many bins do you have outside? c) What colour are they and what are they for? d) Why does mixing the metal with the glass and the plastic not matter?

58 Find out about recycling metals Which metals do we recycle? How is this done? Why do we have to do it? Make a poster to encourage recycling

59 Lesson 7 Experimental Design Plan, carry out, record and analyse the results of an experiment

Metals And Their Properties- Physical and Chemical

Metals And Their Properties- Physical and Chemical All the things around us are made of 100 or so elements. These elements were classified by Lavoisier in to metals and non-metals by studying their properties.