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Solubility

WALT: make accurate measurements using a variety of measuring equipment

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What is in a bottle of coke?

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How big is a mg?

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How much is 100ml?

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How much is 10g?

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Which one of these drinks has the most amount of sugar?

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Sugar per 100ml =

Sugar per 100ml =

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How much sugar can be dissolved in a drink?

Method:

  • Measure 100ml of water
  • Add a level teaspoon (5g) of sugar and stir.
  • Notice what is happening - has it dissolved?
  • Repeat steps 2 and 3 until you notice the sugar is not dissolving

g/l

5g

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Did it dissolve?

✓

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Results:

Observation:

At what point did the sugar stop dissolving?

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Are some measuring tools more reliable than others?

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Why do you think that is?

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Investigate

What further questions do you have about solubility? What would happen if we used icing or granulated sugar? What if it was salt? Write your question and investigate below