9E+and+F

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All worksheets will be on the unit pages 9E and 9F on www.789science.wikispaces.com. Some of the resources are also on www.dcsks3science.wikispaces.com. There are also more resources in the Exploring Science folders.

Objectives:

 * Distinguish between metals and non-metals by their properties.
 * Identify some properties of metals that make them useful in building.
 * Recall that an alloy is a mixture of metals,or of metals and carbon.
 * Explain how the particle model can help us to understand the properties of alloys.

Activities: (1 ½ or 2 lesson)

 * 1) Quick quiz (revised for both 9E and F). Students self-mark and reflect by traffic lighting the first column on target sheet. (red = I can't do this, yellow = I can do this a little, but I'm not sure, green = I can confidently answer questions on this).
 * 2) Recall properties of metals and non-metals from Y8: watch brainpop [] or complete work sheet __9Ea(4) Different properties__
 * 3) Malleability and ductility: class discussions by asking students to draw particle diagrams of metal shapes (e.g. like diagrams on page 60) and ask them what needs to happen to this arrangement for a metal to take on a new shape or to be pulled onto a wire – they can discuss in pairs. Use demonstration/group work in activity 4 below and that can lead into alloys straight away – See Exploring task 3 page 135 – this approach links well with activity 4.
 * 4) How can we make metals more useful? Link this malleability and ductility above – more info on this in “Explaining task 6” page 14 1 in teaching guide. Also AT animation on page 60 of electronic textbook. Use RMB coins.
 * 5) Book pages 60 and 61: answer questions 1 to 4.
 * 6) “Thinking about buildings” as a plenary – see first AT presentation on page 57.

HWKs:

 * Textbook pages 56 and 57 answer all questions and complete 9Ea gapfill.
 * Worksheet 9Eb10 Useful alloys and 9Eb gapfill alloys.
 * Electronic worksheet: Metal properties 2

Resources:

 * Textbook including electronic version.
 * Worksheets: 9Ea and 9Eb gap fill sheets, electronic metal properties – 2 sheet on wiki, worksheet 9Eb10 Useful alloys
 * RMB coins

Objectives:

 * Recall the name of the gas in the air that reacts with metals most easily.
 * Name some metals that are unreactive in air.
 * Write word equations for the reactions of metals in the air.
 * Explain the meanings of the words tarnish, oxidise and corrode.
 * Describe the reaction of metals with water.
 * Write word equations for the reactions of metals with water.
 * Place metals in order of reactivity based on their chemical properties.
 * Describe and explain the method used to extract reactive metals from their compounds.

Activities: (1 ½ lesson)

 * 1) Watch the video on how metal tarnishes on http://dcsks3science.wikispaces.com/Shine+On
 * 2) Book page 68-69 questions 1 to 8.
 * 3) Demo of reactions of metals in oxygen. Sprinkle powders of Fe, Mg and Al into a Bunsen flame (risk assessment), place small piece of Na in deflagrating spoon and place in Bunsen flame (Explaining task 3 Teaching guide page 159) or can do “Exploring task 2” with electronic worksheet i.e. card sort activity.
 * 4) Demo of sodium and potassium with water – only use lithium if we have a new sample by then as old sample does not react at all.
 * 5) Book page 70 and 71: questions 1 to 5.
 * 6) Quick check 9Fb.

(if time: Practical hotting up: worksheets 9Fb(3)/(4) see page 162 in Teaching guide)

HWK:

 * Complete 9Fa gapfill + worksheet 9Fa(9) or (10)
 * Complete 9Fb gapfill + worksheet 9Fb (8)

Resources:

 * Textbook
 * Materials for demos of metals with oxygen and potassium and sodium with water
 * 9Fa and 9Fb gapfills.
 * 9Fa (9),(10) worksheets.
 * 9Fb(8) worksheet.
 * Quickcheck 9Fb

Objectives:

 * Describe what happens when iron corrodes.
 * Explain how some metals are naturally protected against corrosion.
 * Write word equations for the reactions of metals with acids.
 * Describe ways in which metals can be protected against corrosion

Activities: (1 ½ lessons)

 * 1) Starter 3 (see Teaching guide page 166) to show that pure water becomes acidic when carbon dioxide dissolves in it.
 * 2) Demo Mg + HCl – see starter 4 Teaching guide page 166.
 * 3) Investigating reactivity using Mg and HCl reaction: worksheet 9Fc(5)
 * 4) Book pages 72 and 73 questions 1 to 9.
 * 5) Video: AT link on page 72: Students write word and symbol equations for the Mg and acid reaction. Also write equations for reactions between acid and other metals.
 * 6) Quick check 9Fc.

HWK:

 * Worksheet 9Fc(8) – Which metals reacts better?2 + gapfill 9Fc.
 * Complete written work on investigation 9Fc(5) – Investigation reactivity 2.

Resources:

 * Textbook.
 * Materials for investigation on reactivity.
 * Worksheet 9Fc(8).
 * Gapfill 9Fc.
 * Worksheet 9Fc(5).
 * Quick check 9Fc

Objectives

 * Compare the reactivity of some familiar metals.
 * Describe the criteria used to sort metals into order of reactivity.
 * Explain how to use the reactivity series to predict whether a reaction will take place.
 * Write word equations for reactions of metals that do take place with water, air and acids.

Activities: (2 lessons)

 * 1) Starter 2 or 3 Teaching guide page 170.
 * 2) Watch video “Displacement reactions” on AT page 76 or on http://dcsks3science.wikispaces.com/The+reactivity+league
 * 3) Practical displacement reactions of metals. Worksheet 9Fd (3) (4) or (5) only.
 * 4) Metal reactivity in action 1 and 2 – worksheets 9Fd (8) and (9).
 * 5) Book pages 76 and 77 answer all questions.
 * 6) Watch video clip on thermit reaction on AT page 76 or on http://dcsks3science.wikispaces.com/The+reactivity+league
 * 7) Quick check 9Fd

HWK:

 * Book pages 74-74 answer questions 1 to 7
 * Prepare for test

If time left – this is not in test


 * Topic 5: Ready salted - **

Objectives:

Recall that when a base reacts with an acid, a salt and water are formed. Use word equations to describe reactions between metal oxides and acids

Activities – 1 lesson


 * 1) Link to 9Eb that when metal oxides (after corrosion) react with acids salts are formed.
 * 2) Practical making coppers sulphate: instructions in Teaching guide page 138.
 * 3) Worksheet 9Eb (9) Naming salts

Resources:


 * 1) Materials for making copper sulphate.
 * 2) Instructions for making copper sulphate.
 * 3) Worksheet 9E(b)