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Non-Conductor
Food Preservation
Difference Between
Energy
Diamond
Earth
First on Earth
Black Hole
Force
Fruit Acid
Steel
First Lady on Space
Fax Machine
Charles Goodyear
Speed of Sound
Digestion
Largest Flower
Human Heart
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Dispersal of Seeds
Celestial bodies
Mercury
Jupiter
Tooth
Human Cell
Bacteria
Body Temperature
Dreams
Pluto
Milk rise
Allotropes of carbon
Revolution of Planets
Shadows
White Dots
Finger Nails
Filament of a Bulb
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Non-conventional source of energy
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Elements
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Sour Milk
Stephan zulaica

How does milk get sour?

Answers
Saad
By putting salt in it
Candace w.
By letting it set for a long time.
Editor
Milk gets sour by the action of a certain bacteria. We boil the milk to save it from these bacteria. But once it is cooled and stays open to air for long enough, the bacteria get in and "spoil" the milk.
Indu
Due to Bacteria reaction
Alex i
When raw milk is left standing for a while, it turns sour. This is the result of fermentation: lactic acid bacteria turn the milk sugar into lactic acid. This fermentation process is exploited in the production of various dairy products.
ankita dubey
The milk gets sour by bacteria`s decompostion reaction which make the milk sour
Nancy B
I make yogurt and know that good bacteria makes good yogurt. Lactobicillus is the good bacteria. What bacteria makes pastureized milk go sour?
renu
Milk sours due to the fermentation caused by the bacteria, Lactobacilus.
Happy Flores
How does milk mold?
divya
Milk has a sugar called lactose. Milk contains some bacteria called lactobacillus. When milk is left open in a warm condition ,these bacteria convert lactose to lactic acid in presence of an enzyme called lactose, this process is called fermentation.
ALYSSA
Milk can go off if it has been kept in the sun for a number of days. It can also get spoilt if it has been kept in the fridge for many days.
Alyssa
Milk can get sour if it has been left in a hot place
michelle sze
I think milk gets sour when oxygen has gone inside the bottle when you keep it open for longer than the usual. The oxygen reacts to the bacteria in the milk because the bacteria in the milk is anaerobic.
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