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| All bundled up for outside fun |
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| Sophie and her snow dog - can you see it? |
The girls took the opportunity to conduct their science fair experiments.
Sophie was testing ratios of milk to vinegar to make the best plastic from casein, the protein in milk.
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| Checking the temperature of the milk |
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| Stirring milk and vinegar together |
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| Checking for curds |
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| Putting cheesecloth in position |
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| Straining the curds |
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| Observing the color of the liquid after straining |
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| Curds produced from various amounts of vinegar (by teaspoon) |
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| Weighing the curds |
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| Shaping them before drying |
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| The messy aftermath |
Hannah was testing how much salt to add to water to make an egg float.
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| Stirring the salt solution |
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| Measuring liquids for varying salinity in each cup |
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| From 1 to 5, all salt solution to pure tap water, with varying concentrations in between |
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| Testing an egg in each solution |
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| The results - an egg floats in a solution that is approximately 10% salt |
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