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National
Science Education Standards
This activity addresses the following National
Science Education Standards:
Physical
Science: Structure and Property of Matter (Grades
5-8)
A substance has characteristic properties, such as density,
a boiling point, and solubility, all of which are independent
of the amount of the sample. A mixture of substances often
can be separated into the original substances using one or
more of the characteristic properties.
Physical Science: Structure and Property of Matter (Grades 9-12)
Solids, liquids, and gases differ in the distances and angles
between molecules or atoms and therefore the energy that binds
them together. In solids the structure is nearly rigid; in
liquids molecules or atoms move around each other but do not
move apart; and in gases molecules or atoms move almost independently
of each other and are mostly far apart.
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