Section 1: a. What are acids and alkalis like and where do we use them?
Children should learn:
- that many household materials are acids and are not hazardous
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Section 2: b. What are acids and alkalis like and where do we use them?
Children should learn:
- to recognise and interpret common hazard signs
- to select key ideas from written material
- how to deal with acids or alkalis if they are spilt or splashed on the skin
- that adding water to an acid or alkali solution dilutes it and makes it less hazardous
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Section 3: How can acids and alkalis be identified and distinguished from each other?
Children should learn:
- to devise a table to show results effectively and to identify patterns in these
- that acids and alkalis can change the colours of some dyes and that this can be used to classify them
- the names of some common laboratory acids and alkalis
- to classify solutions as acidic or alkaline, using indicators
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Section 4: Is there a range of acidity and alkalinity?
Children should learn:
- that universal indicator gives a range of colours in acidic and alkaline solutions
- that pH numbers indicate how acidic or alkaline a solution is
- that neutral solutions are pH7, acidic solutions below 7 and alkaline solutions above 7
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Section 5: a. What happens when an acid is added to an alkali?
Children should learn:
- that acids and alkalis are used in a range of everyday situations
- how to find information,
eg using contents, index, glossary, key words, hotlinks
- to select and note appropriate information about uses and effects of acids and alkali
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Section 6: b. What happens when an acid is added to an alkali?
Children should learn:
- that when an acid is added to an alkali, it lowers the pH
- that a neutral solution can be obtained by adding an acid to an alkali
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Section 7: Checking progress
Children should learn:
- to summarise key ideas about acids, alkalis and neutralisation
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Section 8: Where is neutralisation important?
Children should learn:
- how to frame a question that can be investigated
- how to use preliminary work to help decide what to measure or to observe
- to choose appropriate techniques and equipment
- to compare their investigative method and evidence collected with those of others
- to work with others in summarising information and evaluating a product
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Section 9: Reviewing work
Children should learn:
- to relate ideas about acids and alkalis to each other
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