represent the natural world using models and identify
their limitations (*5.3-C, 6.3-C, 7.3-C & 8.3-C),
identify changes that can occur in the physical properties
of the ingredients of solutions such as dissolving of minerals in water
(*5.7-C).
demonstrate that new substances can be made when two
or more substances are chemically combined and compare the properties of
the new substances to the original substances(*6.7-A),
explain and illustrate the interactions between matter
and energy in the water cycle (*6.8-B),
classify substances by their physical and chemical properties
(*6.7-B),
predict land features resulting from gradual changes
such as mountain building, beach erosion, land subsidence, and continental
drift (*8.14 B),
describe how human activities have modified water quality
(*8.14-C).
* Refers to the Texas Essential Knowledge & Skills
for science.
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