# data[].attributes.body
Initial Temperature= -0.1°C
Final Temperature= -11.5°C
Change in temperature= 10.4°C

# data[].attributes.headline
Why is sodium chloride placed on icy patches on highways in the winter?

# data[].attributes.subject
Why is sodium chloride placed on icy patches on highways in the winter?

# data[].attributes.body
The sodium chloride lowers the temperature, melting the ice.

# data[].attributes.headline
Why is sodium chloride (NaCl) used rather than sucrose (C12H22O11)? Recall the "x" in the freezing point depression frormula represents?

# data[].attributes.subject
Why is sodium chloride (NaCl) used rather than sucrose (C12H22O11)? Recall the "x" in the freezing point depression frormula represents?

# data[].attributes.body
Sucrose does not dissolve as quickly in water as sodium chloride. Sodium chloride disassociates into two ions, which decreases the temperature.

# data[].attributes.headline
Why are large crystals of sodium chloride (rock salt) used instead of small crystals?

# data[].attributes.subject
Why are large crystals of sodium chloride (rock salt) used instead of small crystals?

# data[].attributes.body
Large crystals take longer to dissolve. This allows the ice cream to evenly freeze.

# data[].attributes.headline
Why is sodium chloride added to the ice?

# data[].attributes.subject
Why is sodium chloride added to the ice?

# data[].attributes.body
Adding a solute to a solvent lowers the freezing point of that solvent. As more solute is added to the solvent, more kinetic energy needs to be released, lowing the temperature of the solution.

# data[].attributes.headline
Explain the change in temperature that you observed.

# data[].attributes.subject
Explain the change in temperature that you observed.

# data[].attributes.body
The longer we shook the box the lower the temperature dropped.

# data[].attributes.body
Freezing point depression is the process in which adding a solute to a solvent decreases the freezing point of the solvent.

# data[].attributes.headline
Summarize in one paragraph how you made ice cream.

# data[].attributes.subject
Summarize in one paragraph how you made ice cream.

# data[].attributes.body
We had a quart size Ziploc and filled it with a mixture of milk, half and half, sugar, and vanilla. then we had to double bag the quart size bag. After, we added two scoops of ice in a gallon sized bag and took its temperature. Then, we added rock salt and placed the milk mixture bag into the ice. To protect our hands, we placed the bag in a shoe box. Then we shook the box vigorously until the mixture solidified. Finally, we took the final temperature of the ice/salt mixture and ate the ice cream.

# data[].attributes.body
Adding a solute to a solvent lowers the freezing point of that solvent. This change in freezing point is referred to as freezing point depression, one of several colligative properties. In this experiment, we will use the colligative property of freezing point depression of water to chill another mixture (ice cream) to the solid state

# data[].attributes.body
Sara Morrison, Carney Morrow, Cecily Ma, Maite Kvarna.