1. How much salt is there in rock salt?
7H Solutions
How much salt is there in rock salt?
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2. Howden School and Technology College
Objective
To calculate and conclude which rock salt sample contains the most salt.
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3. Obtaining your evidence
Level
In my experiment, I can 3
use simple equipment to make measurements e.g. length and mass
make basic observations 4
make enough measurements and/or observations for the investigation 5
make a series of measurements and/or observations that are accurate
spot that a result is “odd” and repeat the experiment
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4. Getting salt from rock salt
Dissolve
Filter
Evaporate
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5. Howden School and Technology College
How much salt?
Weigh the salt at the end of the experiment
Mass of pure salt
Percentage of salt obtained
X 100 =
Mass of rock salt used
Weigh the rock salt at the start of the experiment
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6. Howden School and Technology College
Making a conclusion
Level
In my conclusion, I can 3
give some explanation for the patterns and observations 4
use scientific language to:
explain the patterns shown in my graphs
use the patterns in my graphs to draw conclusions
link the conclusion to my prediction 5
use knowledge and understanding of level 5 science to :
use these patterns and any other results to draw conclusions
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7. Which sample had the most salt?
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