Beverage Lab

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Beverage Lab
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Orange Juice

• Could you see bits of different materials with
  different properties?
• Were these bits solid, liquid, or gas?
• What are these little solid bits called?
• Where does pulp come from?
• Did you decide the OJ was homogeneous or
  heterogeneous?

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Orange Juice
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Soda Pop

• What did you see in the soda pop?
• Were these different bits solid, liquid, or gas?
• What kind of gas was it?
• Did you decide the pop was homogeneous or
  heterogeneous?

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Soda Pop
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Bubbles in Soda Pop

• Can you see any bubbles in an unopened bottle of
  pop?
• When you open it, where does all the fizz come
  from?
• Where was all the carbon dioxide before you
  opened the bottle?

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Homogenized Milk

• With your naked eye, did the milk look
  homogeneous or heterogeneous?
• What did you see under the microscope?
• Were the different bits solid, liquid, or gas?
• What were these different bits?

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Homogenized Milk
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Blobs in Homogenized Milk
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Shaking breaks the membrane
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Homogenization

• After raw milk is pasteurized, it is forced
  through tiny tubes at high velocity and pressure
  to homogenize it. This breaks the fat blobs into
  smaller blobs that cannot cluster together and
  rise to the top.

http//class.fst.ohio-state.edu/Dairy_Tech/10.020
Homogenization.htm
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Raw versus Homogenized Milk
http//www.foodsci.uoguelph.ca/dairyedu/homogeniza
tion.html
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like Oil and Water.
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Skim versus Homogenized Milk
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What if we shook a coffee creamer?Could we make
butter?
HmmmShaking separates fat from milk
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Dont Forget

• Title Pages
• Mixtures and Pure Substances
• Homework
• Summary
• Homogeneous versus Heterogeneous
• Due TOMORROW

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Write a Summary

• Must be done on loose leaf.
• Must be well written.
• What is homogeneous?
• Give one example.
• Why is this homogeneous?
• What is heterogeneous?
• Give two examples.
• Explain why each one is heterogeneous.

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• Studycast