This worksheet has been made for students doing entry level chemistry in an SEN school. 1 lesson practical, 1 lesson write up.
You will need calcium carbonate strips to assess water hardness, universal indicator strips, and 4 x water samples e.g. seawater, rainwater, river water, tapwater.
Information of residue and pH level requirements for drinking water.
Worksheet includes:
Practical picture that students label for equipment list
Prediction
Gapfill activity method completion
Risk assessment precaution table completion
What did students change, measure, keep the same
Results table to record the pH, calcium carbonate level and mass of residue
Conclusions - which water sample is potable
What could they improve - e.g. were they accurate, could they repeat their experiment
You can have students complete a bar graph as well
Everything unblurred when bought
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