Physical and Cheical Changes (7th grade)
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Transcript of Physical and Cheical Changes (7th grade)
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INTRODUCION to MATTER S.II
Ignacio Anguera de Sojo
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Physical and
Chemical changes
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Physical and Chemical changes6.- Conservation of mass
Law of conservation of mass: mass is neither created nor destroyed is only transformed.
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P: 555.123.4568 F: 555.123.4567123 West Main Street, New York, NY 10001
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Physical and Chemical changes6.- Conservation of mass
Law of conservation of mass: mass is neither created nor destroyed is only transformed.
What states the law of conservation of mass?
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Physical and Chemical changes6.- Conservation of mass
Law of conservation of mass: mass is neither created nor destroyed is only transformed.
If the mass is neither created or destroyed… Where have all the atoms that constitute "me" been since the creation of the Earth? Have they been part of other people through the ages?
What states the law of conservation of mass?
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Physical and Chemical changes7.- Physical Changes in
our worldSugar, from the field to the table1.- Sugar cane grow in fields and contain the sugar dissolved in liquid inside the plant
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Physical and Chemical changes7.- Physical Changes in
our worldSugar, from the field to the table2.- The sugar and shredded. Then, they cane is cut. The cane pieces are washed are squeezed to press out the juice containing the sugar cane.
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Physical and Chemical changes7.- Physical Changes in
our worldSugar, from the field to the table3.- The water is evaporated form the juice and raw crystals form
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Physical and Chemical changes7.- Physical Changes in
our worldSugar, from the field to the table
The sugar molecules in the crystals are the same sugar molecules that were stored in the sugar cane plants.