Science at key stage 3 (Year 9)
Unit 9F: Patterns of reactivity
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Objectives |
Section 1: Why do metals tarnish?
Children should learn:
- that many metals are affected by air and water
- that different metals are affected in different ways
- that some metals are soft and can be cut
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Section 2: How do metals react with water?
Children should learn:
- that some metals react with cold water to produce hydrogen
- that some metals react more readily with water than others
- about the hazards associated with some metals
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Section 3: Is the order of reactivity of metals with water the same as that with acids?
Children should learn:
- that some metals react more readily with acids than others
- to decide which observations are relevant to a piece of work
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Section 4: Can we make predictions about the reactions of metals with oxygen?
Children should learn:
- to use a proposed reactivity series to make predictions
- to test predictions made
- that metals react with oxygen to form oxides
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Section 5: a. Can metals displace each other?
Children should learn:
- that a metal will displace a less reactive metal from a solution of one of its salts
- to construct a table to show patterns clearly
- to identify patterns in observations
- to use a model to explain results
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Section 6: b. Can metals displace each other?
Children should learn:
- that displacement reactions can be useful
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Section 7: Checking progress
Children should learn:
- how an activity series can help to make sense of the reactions of metals
- how an activity series can be used to make predictions
- that sometimes the data doesn't enable firm predictions/conclusions to be made
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Section 8: How does the activity series relate to uses and sources of metals?
Children should learn:
- to identify what information is needed, and use different texts as sources
- to structure paragraphs to develop points, using evidence and additional facts
- to relate the occurrence, extraction and use of metals to their position in the activity series
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Section 9: How can we find out more about the reaction of metals with acids?
Children should learn:
- to decide which observations or measurements are appropriate
- to identify variables that need to be controlled and decide how to do this
- to choose axes and scales for graphs
- to decide whether results that do not fit the pattern expected arise from experimental shortcomings or are significant
- to explain results in the light of scientific knowledge and understanding
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Section 10: Reviewing work
Children should learn:
- key ideas about the relative reactivity of different metals
- how to apply the ideas
- how to recognise what information questions are seeking and to evaluate answers
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Sections in this unit |
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This unit is divided into sections. Each section contains a sequence of
activities with related objectives and outcomes. You can view this unit by
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