Building
upon knowledge and skills gained in preceding
grades,
by the end of Grade 8, students will:
Standard 5.6
(Chemistry)
All students will gain an understanding of
the structure and behavior of matter.
Standard 5.6.7.A
Structure
and Properties of Matter
Standard 5.6.7.A.1
Know
that all matter is composed of atoms that may
join together to form molecules.
Standard 5.6.7.A.2
Recognize
that the phase of matter is determined by the
arrangement and motion of atoms and molecules
and that the motion of these particles is related
to the energy of the system.
Standard 5.6.7.A.3
Know
that there are groups of elements that have similar
properties, including highly reactive metals,
less reactive metals, highly reactive non-metals,
and some almost completely non-reactive gases.
Standard 5.6.7.A.4
Recognize that
a mixture often can be separated into the original
substances using one of more of their characteristic
physical properties.
Standard 5.6.7.B
Chemical
Reactions
Standard 5.6.7.B.1
Show
how substances can chemically react with each
other to form new substances having properties
different from those of the original substances.
Standard 5.6.7.B.2
Show
that in most chemical reactions energy is transferred
into or out of a system.
Standard 5.6.7.B.3
Demonstrate
that regardless how substances within a simple
closed system interact, the total mass of the
system remains the same.
Standard 5.6.7.B.4
Illustrate
how atoms are rearranged when substances react,
but that the total number of atoms and the total
mass of the products remain the same as the original
substances.