7E

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 * Unit 7E: Acids and alkalis 3 weeks **
 * ** Topic 1: Acids in action ** ||
 * Learning objectives || Learning strategies – p 131 || Resources ||
 * * Recall that some acids are more dangerous than others.
 * Identify the meanings of some safety symbols.
 * State that alkalis are another type of dangerous chemical.
 * Interpret the Hazchem warning signs. || * Starter: Quick Quiz
 * Practical: demonstration of action of concentrated sulphuric acid e.g. on sugar
 * Acids brainstorm
 * Book p 64 and 65: read and answer all questions
 * Practical: comparing acids
 * HW: worksheets || * Exploring Science Year 7 text pages 64 and 65
 * Quick quiz 7Ea
 * Equipment, materials and worksheet 7Ea(3) for comparing acids investigation
 * 789science.wikispace
 * Other worksheets: see below ||
 * Connections:
 * IGCSE chemistry section 4a || Assessment:
 * Plenary: Thinking about hazards and summarizing ideas || Support/extension:
 * Access: worksheet 7Ea (1)
 * Must: 7Ea (4)
 * Worksheets 7Ea (6) (most) or (7) (some) ||


 * ** Topic 2: Tangy tastes ** ||
 * Learning objectives || Learning strategies – p 134 || Resources ||
 * * Statethetasteofacids.
 * Giveexamplesofsomeacidsinfoods.
 * Explainthedifferencebetweendiluteandconcentratedacids.
 * Explainwhyacidsareusedinpicklingfoods.
 * || * Starter: acid sampling
 * Data analysis: reaction of limestone and acid – worksheet 7Eb (4)
 * Book p 66-67: read and answer all questions
 * Scurvy: discussion
 * HW: worksheets || * Exploring Science Year 7 text pages 66 and 67
 * Worksheet 7Eb (4)
 * Quick check 7Eb
 * 789science.wikispace
 * Other worksheets: see below ||
 * Connections:
 * IGCSE chemistry section 4a || Assessment:
 * Plenary: Quick check || Support/extension:
 * Access: worksheet 7Eb(1)
 * Must: 7Eb (5)
 * Worksheets 7Ea (6) (most) or (7) (some) ||


 * ** Topic 3: In the red ** ||
 * Learning objectives || Learning strategies – p 137 || Resources ||
 * * Statesomeexamplesofcommonacids.
 * Statesomeexamplesofcommonalkalis.
 * Describewhatanindicatordoes.
 * Describewhataneutralsubstanceis. || * Starter: water into ‘wine’
 * Alkali brainstorm
 * Book p 68: read and answer all questions
 * Practical: using red cabbage as an indicator
 * Book p 69: read and answer all questions
 * Plenary: Quick check
 * HW: worksheets || * Exploring Science Year 7 text pages 68 and 69
 * Quick check 7Ec
 * Equipment, materials and worksheet 7Ec (3) for using red cabbage as an indicator (p138)
 * 789science.wikispace
 * Other worksheets: see below ||
 * Connections:
 * IGCSE chemistry section 4a || Assessment:
 * Plenary: Quick check || Support/extension:
 * Access: worksheet 7Ec(1) and (2)
 * Must: 7Ec (6) and (7)
 * Worksheets 7Ec (8) (most) or (9) (some) ||


 * ** Topic 4: What is in an acid? ** ||
 * Learning objectives || Learning strategies – p 140 || Resources ||
 * * Describe the features of the pH scale.
 * Describe the colour changes of universal indicator.
 * Explain how pollution might affect the pH of water supplies.
 * State what acids contain. || * Starter: Mixing indicators
 * Demonstration: laboratory indicators
 * Practical: testing the pH of substances
 * pH testing – AT animation
 * Book p 72-73: read and answer all questions
 * HW: worksheets || * Exploring Science Year 7 text pages 72 and 73
 * Equipment, materials and worksheet 7Ed(4) for testing pH
 * AT
 * 789science.wikispace
 * Other worksheets: see below ||
 * Connections:
 * IGCSE chemistry section 4a || Assessment:
 * Plenary: thinking about acids || Support/extension:
 * Access: worksheet 7Ed(1) and (2)
 * Must: 7Ed (7)
 * Worksheets 7Ed (8) (most) or (9) (some) ||


 * ** Topic 5: Finding the balance ** ||
 * Learning objectives || Learning strategies – p 143 || Resources ||
 * * Describe what is meant by neutralisation.
 * Describe some practical examples of neutralisation.
 * Explain how to neutralise an acid or an alkali.
 * Describe the pH changes that take place when an acid is neutralised or diluted. || * Starter: Thinking about acids and alkalis
 * Practical: rainbow fizz
 * Book p 74-75: read and answer all questions
 * Book p 76: read and answer all questions
 * Plenary: Concept map
 * HW: revise for test || * Exploring Science Year 7 text pages 74 - 76
 * Equipment, materials and worksheet 7Ee (3)
 * 789science.wikispace
 * Other worksheets: see below ||
 * Connections:
 * IGCSE chemistry section 4a || Assessment:
 * End of unit test || Support/extension:
 * Access: worksheet 7Ee(1)
 * Must: 7Ee (8) and (9) ||